chore(deps): bump fabric8-client.version from 7.3.1 to 7.4.0 #5526

Job	Run time
sample_operators_tests (sample-operators/tomcat-operator)	3m 32s
sample_operators_tests (sample-operators/mysql-schema)	2m 48s
sample_operators_tests (sample-operators/leader-election)	3m 24s
sample_operators_tests (sample-operators/webpage)	3m 11s
	12m 55s

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