Lint

Add switchable HTTP transports #1232

Job	Run time
build (3.13, ubuntu-latest, pre-push)	1m 22s
build (3.13, ubuntu-latest, pre-commit)	42s
build (3.13, ubuntu-latest, manual)	33s
build (3.13, windows-latest, pre-commit)	1m 25s
build (3.13, windows-latest, manual)	1m 4s
build (3.13, windows-latest, pre-push)	2m 15s
completion-lint	3s
	7m 24s

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