Fix `cluster_manager` script (#2940) #5621

Job	Run time
get-matrices	2s
lint-rust	1m 5s
get-containers	0s
Modules Tests	0s
test-java-container	0s
test-java (17, valkey, 8.0, always, ubuntu, linux, ubuntu-latest, x64, x86_64-unknown-linux-gnu, ...	18m 1s
test-java (17, redis, 6.2, always, ubuntu, linux, ubuntu-latest, x64, x86_64-unknown-linux-gnu, p...	15m 45s
	34m 53s

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