Add Ruby 3.4 support

[cllns]

I noticed CI was breaking due to dry-system (from github) requiring a version of dry-auto_inject that's not released on RubyGems yet. So I added that... then realized I could actually remove both from the Gemfile, since dry-system's github source was added to get access to v1.1 before it was released on RubyGems. We don't need that anymore afaict.

I also went further and removed the github source for dry-files and dry-logger, since I don't think they're needed anymore. CI passes without them, and I think it's simpler to only depend on released gems (and the github source can always be re-added as necessary).

And thinking at a higher level / planning for the future, while we'll sometimes need to add github source to dry-rb gems in hanami repos, but I think we should remove those once they're not needed. (Compared to hanami gems, which can always reference main, so we stay up to date). WDYT @timriley @flash-gordon?

[flash-gordon]

@cllns I usually add them when needed and then remove them. We can have a dedicated plan that always runs against git versions (configured via env vars). The only problem is when you prepare a new version that depends on an unreleased gem, the builds will fail until the version is released. We could automate this with a helper available in gemfiles.

if ENV['USE_GIT_DEPS']
  define_deps_from_git # Ideally, this analyses deps and adds `git dep, github: ...`
end

[flash-gordon]

Oh, also I'm working on dry-auto_inject rn