Merge pull request #5212 from kolyshkin/unsafe_test

tests/int: introduce the concept of unsafe tests

Merge pull request #5142 from cyphar/deprecate-libct-devices

libct/devices: deprecate in favour of moby/sys/devices

Merge pull request #4661 from lifubang/skip-setup-signalNotify-for-detached

Merge pull request #5210 from lifubang/fix-signal-race

Fix SIGCHLD race in signal handler setup

Merge pull request #5164 from opencontainers/dependabot/go_modules/golang.org/x/net-0.52.0

build(deps): bump golang.org/x/net from 0.50.0 to 0.52.0

skip setup signal notifier for detached container

move notifySocket out of signalHandler

move process terminate operation to defer function

fix a ambiguity of err in defer func

Merge pull request #5205 from kolyshkin/carry-5169

go fix: use (*sync.WaitGroup).Go