fix(connector): add fixed-connector-image options #6614

Job	Run time
prepare pre-build environment for tests	16s
build-hstream-admin-store	1m 43s
build-ghc-9.2.8	23m 1s
deploy-to-minikube-ghc-${{ matrix.ghc }}	0s
test-ghc-9.2.8	4m 4s
integration-tests-9.2.8	21m 55s
integration-tests-rqlite-9.2.8	19m 36s
integration-tests-kafka-9.2.8	12m 13s
integration-tests-kafka-rqlite-9.2.8	12m 1s
distributed-tests-9.2.8	5m 43s
	1h 40m 32s

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