- Go: Drop 1.20, Add 1.22
- Node: Drop 18, Add 21
- PHP: Add 8.3
- Ruby: Add 3.3
Perl and Python are still up-to-date with upstream releases
Regenerating the Dockerfiles also picks up the logging change from
183a1e9d63
Saves on the order of 10 MBs of transfer for each build.
We call `rm -rf /usr/src/unit` later in this step, so the full repo has
never appeared in our published images anyway.
