workspace: add await_holding_lock and await_holding_refcell_ref clippy lints #29679

Job	Run time
check-system-test-trigger	38s
build_docker_images (dummy_recorder, dummy_recorder.Dockerfile)	2m 55s
build_docker_images (dummy_eth_to_strk_oracle, dummy_eth_to_strk_oracle.Dockerfile)	3m 15s
build_docker_images (sequencer, Dockerfile)	3m 43s
system_test_hybrid	8m 37s
	19m 8s

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