Fix trying to push mastodon-streaming docker images to upstream's ghc… #1002

Job	Run time
build (production)	4m 58s
build (test)	4m 39s
End to End testing (3.0)	5m 29s
End to End testing (3.1)	5m 38s
test (3.0)	11m 23s
Elastic Search integration testing (3.0, docker.elastic.co/elasticsearch/elasticsearch:7.17.13)	3m 2s
End to End testing (.ruby-version)	5m 14s
Elastic Search integration testing (3.1, docker.elastic.co/elasticsearch/elasticsearch:7.17.13)	3m 34s
test (3.1)	11m 20s
Elastic Search integration testing (.ruby-version, docker.elastic.co/elasticsearch/elasticsearch:...	3m 25s
test (.ruby-version)	14m 9s
Elastic Search integration testing (.ruby-version, docker.elastic.co/elasticsearch/elasticsearch:...	2m 12s
	1h 15m 3s

Provide feedback