fix arabicmmlu

lm_eval/tasks/arabicmmlu/arabicmmlu_primary_natural_science.yaml

 "dataset_name": "Primary Natural Science"
-"group": "arabicmmlu_stem"
-"group_alias": "stem"
+"tag": "arabicmmlu_stem_tasks"
 "include": "_default_template_yaml"
 "task": "arabicmmlu_primary_natural_science"
 "task_alias": "Primary Natural Science"

lm_eval/tasks/arabicmmlu/arabicmmlu_primary_social_science.yaml

 "dataset_name": "Primary Social Science"
-"group": "arabicmmlu_social_science"
-"group_alias": "social science"
+"tag": "arabicmmlu_social_science_tasks"
 "include": "_default_template_yaml"
 "task": "arabicmmlu_primary_social_science"
 "task_alias": "Primary Social Science"

lm_eval/tasks/arabicmmlu/arabicmmlu_prof_law.yaml

 "dataset_name": "Prof Law"
-"group": "arabicmmlu_humanities"
-"group_alias": "humanities"
+"tag": "arabicmmlu_humanities_tasks"
 "include": "_default_template_yaml"
 "task": "arabicmmlu_prof_law"
 "task_alias": "Prof Law"

lm_eval/tasks/arabicmmlu/arabicmmlu_univ_accounting.yaml

 "dataset_name": "Univ Accounting"
-"group": "arabicmmlu_social_science"
-"group_alias": "social science"
+"tag": "arabicmmlu_social_science_tasks"
 "include": "_default_template_yaml"
 "task": "arabicmmlu_univ_accounting"
 "task_alias": "Univ Accounting"

lm_eval/tasks/arabicmmlu/arabicmmlu_univ_computer_science.yaml

 "dataset_name": "Univ Computer Science"
-"group": "arabicmmlu_stem"
-"group_alias": "stem"
+"tag": "arabicmmlu_stem_tasks"
 "include": "_default_template_yaml"
 "task": "arabicmmlu_univ_computer_science"
 "task_alias": "Univ Computer Science"

lm_eval/tasks/arabicmmlu/arabicmmlu_univ_economics.yaml

 "dataset_name": "Univ Economics"
-"group": "arabicmmlu_social_science"
-"group_alias": "social science"
+"tag": "arabicmmlu_social_science_tasks"
 "include": "_default_template_yaml"
 "task": "arabicmmlu_univ_economics"
 "task_alias": "Univ Economics"

lm_eval/tasks/arabicmmlu/arabicmmlu_univ_management.yaml

 "dataset_name": "Univ Management"
-"group": "arabicmmlu_other"
-"group_alias": "other"
+"tag": "arabicmmlu_other_tasks"
 "include": "_default_template_yaml"
 "task": "arabicmmlu_univ_management"
 "task_alias": "Univ Management"

lm_eval/tasks/arabicmmlu/arabicmmlu_univ_political_science.yaml

 "dataset_name": "Univ Political Science"
-"group": "arabicmmlu_social_science"
-"group_alias": "social science"
+"tag": "arabicmmlu_social_science_tasks"
 "include": "_default_template_yaml"
 "task": "arabicmmlu_univ_political_science"
 "task_alias": "Univ Political Science"