net/traefik: Update to upstream release 2.10.1

Details:
- Build with go 1.20
- New release from the 2.10.x branch. Details:
  https://github.com/traefik/traefik/releases/tag/v2.10.1
- No major changes in config format, but minor adaptations of the config
  are necessary for Nomad, Kubernetes and Traefik Hub, see:
  https://doc.traefik.io/traefik/migration/v2/#v210

MFH:		2023Q2