Conflict resolution notes:
- mix.lock: kept this branch's versions for cowlib, h2, hackney and hpax.
Those upgrades are the point of the branch; develop is still on hackney
1.20.1.
- .woodpecker/docker-armv7.yaml: accepted develop's deletion. It only
existed here to build mdex_native on armv7, and mdex was already
replaced with earmark again.
- lib/pleroma/reverse_proxy.ex: took develop's version. It independently
grew request_with_constraints/5 and the invalid-status close, which
supersede the equivalent fixes on this branch. Re-applied this branch's
recv_timeout seeding, which develop does not have.
- lib/pleroma/gun/connection_pool/worker.ex and
lib/pleroma/reverse_proxy/client/tesla.ex: took develop's versions. The
gun pool rework (#7934) already guards the demonitor and makes
release_conn/cancel_stream exit-safe, and it splits the Tesla client's
graceful release from its abort path, so this branch's changes there are
obsolete.
That leaves the client leak fix as a Hackney-only concern, which
stream_body/1 now handles the same way the gun client does.
