Fix `mlsum` task names after split update

lm_eval/tasks/__init__.py

@@ -290,8 +290,8 @@ TASK_REGISTRY = {
     "blimp_wh_vs_that_with_gap_long_distance": blimp.BlimpWhVsThatWithGapLongDistance,
     
     #GEM/mlsum
-    "mlsum_es":gem_mlsum.MLSUMEs,
-    "mlsum_de":gem_mlsum.MLSUMDe,
+    "mlsum_es":gem_mlsum.GEMMLSUMEs,
+    "mlsum_de":gem_mlsum.GEMMLSUMDe,
     "mlsum_es_covid_challenge_set":gem_mlsum.GEMMLSUMEsChallgeTestCovid,
     "mlsum_de_covid_challenge_set":gem_mlsum.GEMMLSUMDeChallgeTestCovid,