Traefik + CloudFlare

Important: Please read the migration guide.

CVE fixed:

• Advisory GHSA-qqjf-53cj-pwvv
• Advisory GHSA-f52w-8j3h-j724
• Advisory GHSA-w4v4-9rw7-5326

Bug fixes:

• [acme] Disable recursive nss propagation by default for DNS challenge (#13830 @rtribotte)
• [http3] Dedicate a transport per HTTP/3 client connection (#13812 @sdelicata)
• [server] Deny request with an opaque request target (#13796 @sdelicata)
• [server] Do not forward h2c upgrade headers to the backend (#13797 @sdelicata)