Make rails-ex work with Ruby 3.3

[pvalena]

I have managed to make it work with Ruby 3.3!

It works with all the other Ruby versions as well. Test log:
https://gist.github.com/pvalena/6834136128fb4fb131da6d779416831d

Ruby 3.3 PR & logs:: sclorg/s2i-ruby-container#507

[pvalena]

@jackorp PTAL.

[phracek]

@pvalena Will this change work also with the older ruby versions? If not what about to branch it?

[pvalena]

@phracek
Yes, it works with ALL Ruby versions we have additionally to Ruby 3.3. No branching needed. Test logs proving that are in the initial comment.

[jackorp]

@phracek The app should be OK as long as this set of dependencies is not tested on RHEL 7 (or RHEL 7 based containers for that matter) due to the incompatibility between the system postgresql version and the newer rubygem-pg database connector. If we still need/want to test against RHEL 7, only then I think branching out is needed.

[pvalena]

Can we merge this? Is anything else needed from my side?

[jackorp]

@pvalena testing the rails-ex with RHEL 7 is still expected and required. Your current gemfile will not work because rubygem-pg with version this high does not work with Postgres (or probably even compile) that is default on RHEL 7. That is why a new branch is needed and we cannot do this refresh on master.

[pvalena]

Oh, and can't we create a branch for RHEL-7 instead?

[jackorp]

If I recall correctly my last discussion with @phracek about this, the preferred way is to have a branch for 3.3 onward rather than the inverse.

[pvalena]

Ok then - or can't version/tag suffice? Do we expect any updates will be needed for RHEL-7 further on?
If not, can you create the branch and I'll move the PR target there.