more revert

Author: nik9000

muted-tests.yml

@@ -429,6 +429,9 @@ tests:
 - class: org.elasticsearch.xpack.esql.heap_attack.HeapAttackIT
   method: testLookupExplosionNoFetch
   issue: https://github.com/elastic/elasticsearch/issues/127365
+- class: org.elasticsearch.xpack.esql.qa.single_node.GenerativeIT
+  method: test
+  issue: https://github.com/elastic/elasticsearch/issues/127536
 - class: org.elasticsearch.xpack.esql.qa.mixed.MixedClusterEsqlSpecIT
   method: test {union_types.MultiIndexSortIpStringEval ASYNC}
   issue: https://github.com/elastic/elasticsearch/issues/127537