fix: drop outdated jekyll container and use local built instead

[maxandersen]

similar to #2601 but instead of limiting gem updates, replace the outdate jekyll container with a local built one.

Tested with docker compose up

[github-actions]

🙈 The PR is closed and the preview is expired.

[gsmet]

I think we deployed the fixes I had to do for #2495 in all supported branches.

I will have a look though before we merge.

[gsmet]

From what I can see some errors but probably not that problematic:

Conflict: The following destination is shared by multiple files.                                                                                                                                                           
                      The written file may end up with unexpected contents.                                                                                                                                                                                                                
                      /home/gsmet/git/quarkusio.github.io/_site/author/jbonofre/index.html                                                                                                                                                                                                 
                       - .html                                                                                                                                                                                                                                                             
                       - .html

I wasn't able to fix this one quickly, I fixed a few others for which I will create a PR.