Mute org.elasticsearch.packaging.test.PackageUpgradeTests test12SetupBwcVersion #131791

Author: elasticsearchmachine

muted-tests.yml

@@ -498,3 +498,6 @@ tests:
 - class: org.elasticsearch.packaging.test.DockerTests
   method: test140CgroupOsStatsAreAvailable
   issue: https://github.com/elastic/elasticsearch/issues/131372
+- class: org.elasticsearch.packaging.test.PackageUpgradeTests
+  method: test12SetupBwcVersion
+  issue: https://github.com/elastic/elasticsearch/issues/131791