Mute org.elasticsearch.packaging.test.DockerTests test021InstallPlugin #116147

muted-tests.yml

@@ -401,6 +401,9 @@ tests:
 - class: org.elasticsearch.search.SearchServiceSingleNodeTests
   method: testSlicingBehaviourForParallelCollection
   issue: https://github.com/elastic/elasticsearch/issues/125899
+- class: org.elasticsearch.packaging.test.DockerTests
+  method: test021InstallPlugin
+  issue: https://github.com/elastic/elasticsearch/issues/116147
 
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