[Backport 7.62.x] [CWS] remove `simpleHTTPRequest` and use regular client #66319

Job	Run time
assign-team-label	45s
release-note-check	1m 18s
agenttelemetry-list-change-ack-check	51s
ask-reviews	33s
fetch-labels	3s
team-label-check	1s
skip-qa-check	36s
	4m 7s

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