net/traefik: Update to upstream release 2.11.2
Details:
- Bugfix release, see https://github.com/traefik/traefik/releases/tag/v2.11.2
- Defaults around certain timeouts has changed. If those are important for your use case, please review them, see: https://doc.traefik.io/traefik/migration/v2/#v2112
MFH: 2024Q2