fix typo in muted CSV test for scoring in ES|QL (elastic#118665)

Author: tteofili

muted-tests.yml

@@ -174,7 +174,7 @@ tests:
 - class: "org.elasticsearch.xpack.esql.qa.mixed.MixedClusterEsqlSpecIT"
   method: "test {scoring.*}"
   issue: https://github.com/elastic/elasticsearch/issues/117641
-- class: "org.elasticsearch.xpack.esql.qa.mixed.MultilusterEsqlSpecIT"
+- class: "org.elasticsearch.xpack.esql.qa.mixed.MultiClusterEsqlSpecIT"
   method: "test {scoring.*}"
   issue: https://github.com/elastic/elasticsearch/issues/118460
 - class: "org.elasticsearch.xpack.esql.ccq.MultiClusterSpecIT"