deps: Update http-client to v2.2.0 #4583

Job	Run time
filter	42s
downstream-compatibility (java-bigtable)	9m 5s
downstream-compatibility (java-firestore)	4m 2s
downstream-compatibility (java-pubsub)	4m 14s
downstream-compatibility (spring-cloud-gcp)	12m 57s
conditional-required-check	2s
	31m 2s

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