[8.x] fix typo in muted CSV test for scoring in ES|QL (elastic#118665) (elastic#118738)

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

(cherry picked from commit a583a38)

Author: tteofili

muted-tests.yml

@@ -373,7 +373,7 @@ 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"