Bug fixes:

• [acme] Bump github.com/go-acme/lego/v4 to v4.32.0 (#12702 by ldez)
• [middleware] Fix case sensitivity on x-forwarded headers for Connection (#12690 by LBF38)
• [middleware, authentication] Handle empty/missing User-Agent header (#12545 by a-stangl)
• [middleware, authentication] Add maxResponseBodySize configuration to forwardAuth middleware (#12694 by gndz07)
• [server] Fix TLS handshake error handling (#12692 by juliens)

Documentation:

• [docker] Update docker in-depth setup guide (#12682 by mdevino)
• [k8s] Make labelSelector option casing more consistent (#12658 by holysoles)
• [k8s/ingress-nginx] Add temporary note to advertise the incoming NGINX annotations (#12699 by nmengin)
• Increased content width in documentation (#12632 by tobiasge)
• Correct encoded characters allowance in entrypoints.md (#12679 by Apflkuacha)