mmlu-pro: fixed yaml formatting

lm_eval/tasks/mmlu_pro/flan_cot_zeroshot/mmlu_pro_computer_science.yaml

 "dataset_name": "computer_science"
 "description": "The following are multiple choice questions (with answers) about computer_science.\n\
   \n"
-"group": "mmlu_pro_flan_cot_zeroshot_stem"
+"tag": "mmlu_pro_flan_cot_zeroshot_stem"
 "include": "_mmlu_pro_flan_cot_zeroshot_template_yaml"
 "task": "mmlu_pro_flan_cot_zeroshot_computer_science"

lm_eval/tasks/mmlu_pro/flan_cot_zeroshot/mmlu_pro_economics.yaml

 "dataset_name": "economics"
 "description": "The following are multiple choice questions (with answers) about economics.\n\
   \n"
-"group": "mmlu_pro_flan_cot_zeroshot_social_sciences"
+"tag": "mmlu_pro_flan_cot_zeroshot_social_sciences"
 "include": "_mmlu_pro_flan_cot_zeroshot_template_yaml"
 "task": "mmlu_pro_flan_cot_zeroshot_economics"

lm_eval/tasks/mmlu_pro/flan_cot_zeroshot/mmlu_pro_engineering.yaml

 "dataset_name": "engineering"
 "description": "The following are multiple choice questions (with answers) about engineering.\n\
   \n"
-"group": "mmlu_pro_flan_cot_zeroshot_stem"
+"tag": "mmlu_pro_flan_cot_zeroshot_stem"
 "include": "_mmlu_pro_flan_cot_zeroshot_template_yaml"
 "task": "mmlu_pro_flan_cot_zeroshot_engineering"

lm_eval/tasks/mmlu_pro/flan_cot_zeroshot/mmlu_pro_health.yaml

 "dataset_name": "health"
 "description": "The following are multiple choice questions (with answers) about health.\n\
   \n"
-"group": "mmlu_pro_flan_cot_zeroshot_other"
+"tag": "mmlu_pro_flan_cot_zeroshot_other"
 "include": "_mmlu_pro_flan_cot_zeroshot_template_yaml"
 "task": "mmlu_pro_flan_cot_zeroshot_health"

lm_eval/tasks/mmlu_pro/flan_cot_zeroshot/mmlu_pro_history.yaml

 "dataset_name": "history"
 "description": "The following are multiple choice questions (with answers) about history.\n\
   \n"
-"group": "mmlu_pro_flan_cot_zeroshot_humanities"
+"tag": "mmlu_pro_flan_cot_zeroshot_humanities"
 "include": "_mmlu_pro_flan_cot_zeroshot_template_yaml"
 "task": "mmlu_pro_flan_cot_zeroshot_history"

lm_eval/tasks/mmlu_pro/flan_cot_zeroshot/mmlu_pro_law.yaml

 "dataset_name": "law"
 "description": "The following are multiple choice questions (with answers) about law.\n\
   \n"
-"group": "mmlu_pro_flan_cot_zeroshot_humanities"
+"tag": "mmlu_pro_flan_cot_zeroshot_humanities"
 "include": "_mmlu_pro_flan_cot_zeroshot_template_yaml"
 "task": "mmlu_pro_flan_cot_zeroshot_law"

lm_eval/tasks/mmlu_pro/flan_cot_zeroshot/mmlu_pro_miscellaneous.yaml

 "dataset_name": "other"
 "description": "The following are multiple choice questions (with answers) about other.\n\
   \n"
-"group": "mmlu_pro_flan_cot_zeroshot_other"
+"tag": "mmlu_pro_flan_cot_zeroshot_other"
 "include": "_mmlu_pro_flan_cot_zeroshot_template_yaml"
 "task": "mmlu_pro_flan_cot_zeroshot_miscellaneous"

lm_eval/tasks/mmlu_pro/flan_cot_zeroshot/mmlu_pro_philosophy.yaml

 "dataset_name": "philosophy"
 "description": "The following are multiple choice questions (with answers) about philosophy.\n\
   \n"
-"group": "mmlu_pro_flan_cot_zeroshot_humanities"
+"tag": "mmlu_pro_flan_cot_zeroshot_humanities"
 "include": "_mmlu_pro_flan_cot_zeroshot_template_yaml"
 "task": "mmlu_pro_flan_cot_zeroshot_philosophy"

lm_eval/tasks/mmlu_pro/flan_cot_zeroshot/mmlu_pro_physics.yaml

 "dataset_name": "physics"
 "description": "The following are multiple choice questions (with answers) about physics.\n\
   \n"
-"group": "mmlu_pro_flan_cot_zeroshot_stem"
+"tag": "mmlu_pro_flan_cot_zeroshot_stem"
 "include": "_mmlu_pro_flan_cot_zeroshot_template_yaml"
 "task": "mmlu_pro_flan_cot_zeroshot_physics"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_business.yaml

 "dataset_name": "business"
 "description": "The following are multiple choice questions (with answers) about business.\n\
   \n"
-"group": "mmlu_pro_other_generative"
-"group_alias": "other"
+"tag": "mmlu_pro_other_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_business_generative"
 "task_alias": "business"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_computer_science.yaml

 "dataset_name": "computer_science"
 "description": "The following are multiple choice questions (with answers) about computer_science.\n\
   \n"
-"group": "mmlu_pro_stem_generative"
-"group_alias": "stem"
+"tag": "mmlu_pro_stem_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_computer_science_generative"
 "task_alias": "computer_science"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_economics.yaml

 "dataset_name": "economics"
 "description": "The following are multiple choice questions (with answers) about economics.\n\
   \n"
-"group": "mmlu_pro_social_sciences_generative"
-"group_alias": "social_sciences"
+"tag": "mmlu_pro_social_sciences_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_economics_generative"
 "task_alias": "economics"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_engineering.yaml

 "dataset_name": "engineering"
 "description": "The following are multiple choice questions (with answers) about engineering.\n\
   \n"
-"group": "mmlu_pro_stem_generative"
-"group_alias": "stem"
+"tag": "mmlu_pro_stem_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_engineering_generative"
 "task_alias": "engineering"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_health.yaml

 "dataset_name": "health"
 "description": "The following are multiple choice questions (with answers) about health.\n\
   \n"
-"group": "mmlu_pro_other_generative"
-"group_alias": "other"
+"tag": "mmlu_pro_other_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_health_generative"
 "task_alias": "health"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_history.yaml

 "dataset_name": "history"
 "description": "The following are multiple choice questions (with answers) about history.\n\
   \n"
-"group": "mmlu_pro_humanities_generative"
-"group_alias": "humanities"
+"tag": "mmlu_pro_humanities_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_history_generative"
 "task_alias": "history"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_law.yaml

 "dataset_name": "law"
 "description": "The following are multiple choice questions (with answers) about law.\n\
   \n"
-"group": "mmlu_pro_humanities_generative"
-"group_alias": "humanities"
+"tag": "mmlu_pro_humanities_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_law_generative"
 "task_alias": "law"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_math.yaml

 "dataset_name": "math"
 "description": "The following are multiple choice questions (with answers) about math.\n\
   \n"
-"group": "mmlu_pro_stem_generative"
-"group_alias": "stem"
+"tag": "mmlu_pro_stem_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_math_generative"
 "task_alias": "math"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_miscellaneous.yaml

 "dataset_name": "other"
 "description": "The following are multiple choice questions (with answers) about other.\n\
   \n"
-"group": "mmlu_pro_other_generative"
-"group_alias": "other"
+"tag": "mmlu_pro_other_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_miscellaneous_generative"
 "task_alias": "miscellaneous"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_philosophy.yaml

 "dataset_name": "philosophy"
 "description": "The following are multiple choice questions (with answers) about philosophy.\n\
   \n"
-"group": "mmlu_pro_humanities_generative"
-"group_alias": "humanities"
+"tag": "mmlu_pro_humanities_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_philosophy_generative"
 "task_alias": "philosophy"

lm_eval/tasks/mmlu_pro/generative/mmlu_pro_physics.yaml

 "dataset_name": "physics"
 "description": "The following are multiple choice questions (with answers) about physics.\n\
   \n"
-"group": "mmlu_pro_stem_generative"
-"group_alias": "stem"
+"tag": "mmlu_pro_stem_generative"
 "include": "_default_template_yaml"
 "task": "mmlu_pro_physics_generative"
 "task_alias": "physics"