[wrong repo] Improve CI stability

This doesn’t bring us to a green CI yet, but hopefully it’s a step in the right direction :)

quic: fix macOS compilation

This should hopefully fix compilation on macOS.

src: remove QuicSocketListener::OnError(int)

This would conflict with the ssize_t overload on 32-bit builds. There doesn’t seem to be any reason to keep it.

quic: fix compile warning on 32-bit platforms

Make sure that DEFAULT_MAX_CONNECTIONS fits into a size_t.

test: make test-quic-process-cleanup pass inside Worker

This fixes running the QUIC test suite with --worker.

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• commit message follows commit guidelines