Mute org.elasticsearch.test.index.IndexVersionUtilsTests testIndexCompatibleVersionMatches elastic#120760

Author: elasticsearchmachine

muted-tests.yml

@@ -460,3 +460,6 @@ tests:
 - class: org.elasticsearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT
   method: testRestoreSnapshotAllocationDoesNotExceedWatermarkWithMultipleRestores
   issue: https://github.com/elastic/elasticsearch/issues/127286
+- class: org.elasticsearch.test.index.IndexVersionUtilsTests
+  method: testIndexCompatibleVersionMatches
+  issue: https://github.com/elastic/elasticsearch/issues/120760