Mute org.elasticsearch.packaging.test.PackageUpgradeTests test21CheckUpgradedVersion #123380

Author: elasticsearchmachine

muted-tests.yml

@@ -513,3 +513,6 @@ tests:
 - class: org.elasticsearch.packaging.test.DockerTests
   method: test070BindMountCustomPathConfAndJvmOptions
   issue: https://github.com/elastic/elasticsearch/issues/131366
+- class: org.elasticsearch.packaging.test.PackageUpgradeTests
+  method: test21CheckUpgradedVersion
+  issue: https://github.com/elastic/elasticsearch/issues/123380