net/traefik: Update to upstream release 3.3.1

Details:

• Update to the latest version of the 3.3 branch.
• Release details, see: https://github.com/traefik/traefik/releases/tag/v3.3.1
• Depending on local configuration, minor adjustmenst may be required, see: https://doc.traefik.io/traefik/migration/v3/#v32-to-v33

MFH: 2025Q1
(cherry picked from commit b6c3c76611921ed83ba8d1a26884723549e72ed7)