update mrl subsets

lm_eval/tasks/mrl/gen/pan_guru.yaml

 include: '_template'
-task: mrl_gen_pan_guru
+task: pan_guru
 dataset_name: pan_guru

lm_eval/tasks/mrl/gen/pcm_latn.yaml

 include: '_template'
-task: mrl_gen_pcm_latn
+task: pcm_latn
 dataset_name: pcm_latn

lm_eval/tasks/mrl/gen/pes_arab.yaml

 include: '_template'
-task: mrl_gen_pes_arab
+task: pes_arab
 dataset_name: pes_arab

lm_eval/tasks/mrl/gen/pol_latn.yaml

 include: '_template'
-task: mrl_gen_pol_latn
+task: pol_latn
 dataset_name: pol_latn

lm_eval/tasks/mrl/gen/por_latn_braz.yaml

 include: '_template'
-task: mrl_gen_por_latn_braz
+task: por_latn_braz
 dataset_name: por_latn_braz

lm_eval/tasks/mrl/gen/por_latn_port.yaml

 include: '_template'
-task: mrl_gen_por_latn_port
+task: por_latn_port
 dataset_name: por_latn_port

lm_eval/tasks/mrl/gen/ron_latn.yaml

 include: '_template'
-task: mrl_gen_ron_latn
+task: ron_latn
 dataset_name: ron_latn

lm_eval/tasks/mrl/gen/rus_cyrl.yaml

 include: '_template'
-task: mrl_gen_rus_cyrl
+task: rus_cyrl
 dataset_name: rus_cyrl

lm_eval/tasks/mrl/gen/rwr_deva.yaml

 include: '_template'
-task: mrl_gen_rwr_deva
+task: rwr_deva
 dataset_name: rwr_deva

lm_eval/tasks/mrl/gen/sin_sinh.yaml

 include: '_template'
-task: mrl_gen_sin_sinh
+task: sin_sinh
 dataset_name: sin_sinh

lm_eval/tasks/mrl/gen/slk_latn.yaml

 include: '_template'
-task: mrl_gen_slk_latn
+task: slk_latn
 dataset_name: slk_latn

lm_eval/tasks/mrl/gen/slk_latn_sari.yaml

 include: '_template'
-task: mrl_gen_slk_latn_sari
+task: slk_latn_sari
 dataset_name: slk_latn_sari

lm_eval/tasks/mrl/gen/slv_latn.yaml

 include: '_template'
-task: mrl_gen_slv_latn
+task: slv_latn
 dataset_name: slv_latn

lm_eval/tasks/mrl/gen/slv_latn_cerk.yaml

 include: '_template'
-task: mrl_gen_slv_latn_cerk
+task: slv_latn_cerk
 dataset_name: slv_latn_cerk

lm_eval/tasks/mrl/gen/snd_arab.yaml

 include: '_template'
-task: mrl_gen_snd_arab
+task: snd_arab
 dataset_name: snd_arab

lm_eval/tasks/mrl/gen/snd_deva.yaml

 include: '_template'
-task: mrl_gen_snd_deva
+task: snd_deva
 dataset_name: snd_deva

lm_eval/tasks/mrl/gen/spa_latn_mexi.yaml

 include: '_template'
-task: mrl_gen_spa_latn_mexi
+task: spa_latn_mexi
 dataset_name: spa_latn_mexi

lm_eval/tasks/mrl/gen/spa_latn_peru.yaml

 include: '_template'
-task: mrl_gen_spa_latn_peru
+task: spa_latn_peru
 dataset_name: spa_latn_peru

lm_eval/tasks/mrl/gen/spa_latn_spai.yaml

 include: '_template'
-task: mrl_gen_spa_latn_spai
+task: spa_latn_spai
 dataset_name: spa_latn_spai

lm_eval/tasks/mrl/gen/srp_cyrl.yaml

 include: '_template'
-task: mrl_gen_srp_cyrl
+task: srp_cyrl
 dataset_name: srp_cyrl