fix: balancing act for subscription #534

Job	Run time
Massive Cluster	2m 38s
Lint	14s
Benchmark	2m 30s
Main (7.0, 3.2)	1m 0s
Main (7.0, 3.2, compose.ssl.yaml)	1m 19s
Main (7.0, 3.2, hiredis)	48s
Main (7.0, 3.2, hiredis, compose.ssl.yaml)	1m 5s
Main (7.0, 3.2, 2, compose.replica.yaml)	49s
Main (7.0, 3.2, compose.auth.yaml)	55s
Main (6.2, 3.1)	50s
Main (6.2, 3.0)	56s
Main (5.0, 2.7)	1m 4s
Main (jruby)	1m 34s
Main (truffleruby)	1m 19s
Main (test_cluster_state, 7.0, 2, compose.replica.yaml)	3m 15s
Main (test_cluster_state, 6.2, 2, compose.replica.yaml)	3m 6s
Main (test_cluster_broken, 7.0, no)	2m 12s
Main (test_cluster_broken, 6.2, no)	2m 10s
Main (test_cluster_scale, 7.0, compose.scale.yaml)	2m 4s
Main (test_cluster_scale, 6.2, compose.scale.yaml)	1m 56s
NAT-ted Environments	48s
Profiling (single)	47s
Profiling (excessive_pipelining)	44s
Profiling (pipelining_in_moderation)	33s
	34m 36s

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