[9.1] Stop RecordingApmServer message processing before returning from tests#131149

elasticsearchmachine merged 3 commits intoelastic:9.1elastic/elasticsearch:9.1from

ldematte:backport/9.1/fix/testApmIntegration-2ldematte/elasticsearch:backport/9.1/fix/testApmIntegration-2Copy head branch name to clipboard