fix(bitbucket): stop the startup sweep from flooding Bitbucket with 429s#23889

test: drop redundant assertions in Bitbucket pause tests

test: drop tests that only check the interactive flag is passed

fix(server): repository lookups go through a host's rate-limit pause

fix(server): user git actions go through a host's rate-limit pause

fix(bitbucket): share the pull request service's pause key and trace throttled requests

fix(bitbucket): stop the startup sweep from flooding Bitbucket with 429s