Upgrade Traefik version from v2.11 to v3.6

[rick-nu]

Push traefik to version 3.6

[rick-nu]

@eXistenZNL@robertvanlienden@quintenbuis

AFAIK this is safe to merge, worst case you have to change handling multiple local domains for a container, not that big of an issue right?!

[robertvanlienden]

@rick-nu There was some issue with projects with multiple hostnames for 1 container after upgrade.
See; #1 (comment)

Also, my original PR #1 adds some documentation about Postgres etc. Would be nice to have that in the repo.

[robertvanlienden]

@rick-nu Did you try to run this upgrade with a multiple hostnames? If it works after upgrading, I would really like to see this land in main 👍 .

Coming back to my last comment, if Postgres is not working directly I can accept that.
But maybe that works out-of-the-box.

[rick-nu]

@robertvanlienden you can still definitely use multiple host names after upgrading 👌