Unmute GlobalCheckpointSyncActionIT (#116037) (#116042)

Closes #111124
# Conflicts:
#	muted-tests.yml

Author: mark-vieira

muted-tests.yml

@@ -63,8 +63,6 @@ tests:
 - class: org.elasticsearch.packaging.test.DockerTests
   method: test021InstallPlugin
   issue: https://github.com/elastic/elasticsearch/issues/110343
-- class: org.elasticsearch.multi_node.GlobalCheckpointSyncActionIT
-  issue: https://github.com/elastic/elasticsearch/issues/111124
 - class: org.elasticsearch.packaging.test.DockerTests
   method: test600Interrupt
   issue: https://github.com/elastic/elasticsearch/issues/111324