Bump github.com/prometheus/client_golang from 1.19.0 to 1.19.1 #3326

Job	Run time
integration (v1.27.11)	20m 1s
unit	2m 54s
integration (v1.29.2)	19m 58s
test-docker-build (base)	37s
e2e (v1.27.11)	33m 52s
test-docker-build (git)	1m 3s
test-docker-build (image-processing)	53s
test-docker-build (waiter)	36s
e2e (v1.29.2)	36m 36s
	1h 56m 30s

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