Fix ruby 3.4 compatibility

[PikachuEXE]

Same as #320 but that PR got no workflow to approve anymore and author not responding for 5 days

[msakrejda]

Thanks for opening a new PR!

[PikachuEXE]

No idea what's wrong

[seanlinsley]

I'm not sure what changed in Ruby 3.4 for this require to no longer be needed, but we'll surely need to still require it for older Ruby versions. For example:

require 'pg_query/pg_query' unless RUBY_VERSION > '3.4'

Also note that you'll want to add Ruby 3.4 to the CI matrix. But with the comment on that line, there may be some extra work to support Ruby 3.4 in the protobuf gem.

[PikachuEXE]

Updated, added 3.4.0-rc1 to matrix (would 3.4 pick up rc versions? I dunno

Found [google-protobuf](https://rubygems.org/gems/google-protobuf) PR for ruby 3.4 protocolbuffers/protobuf#19752 but CI failing so no idea if it supports 3.4 yet

[PikachuEXE]

I just run locally to see without workflow approval

Without the require some methods are not defined

Adding back the require brings us back to the same issue...

[PikachuEXE]

Turns out it might be development version specific issue
See grpc/grpc#31970 (I took some code changes from that gem's latest version)

Locally run on 3.2, 3.3, 3.4.0-rc1

No idea how to test freebsd one (not in CI matrix as well)

[PikachuEXE]

Update Gemfile.lock I guess...?
(For my own gems I never got it checked-in

Also 3.4.0-rc1 is unavailable on windows. Do you prefer skipping it or using head?

Update 1: made changes to just ruby-head

[PikachuEXE]

Yes I forgot to run bundle update, my fault...

[msakrejda]

It looks like it's still failing on 3.4 due to protobuf issues, but it's also failing on 2.7. I think for 2.7, we could consider dropping it, since that's been out of support for over a year...

[PikachuEXE]

Ya google-protobuf native gems are declared to be incompatible with 3.4 until 3.4 released
We can still test 2.7 if Gemfile.lock is dropped.

[PikachuEXE]

Do we want to try using force_ruby_platform just to see if CI passes? (Can still wait for native version to be released

[PikachuEXE]

New version of google-protobuf released supporting ruby 3.4 - https://rubygems.org/gems/google-protobuf/versions/4.29.3-x86_64-linux

This PR is updated to point to 3.4 (also removed 2.7 like you said

[lfittl]

👍 Thanks for the contribution & your patience on getting this merged. FWIW, I did make a few edits to the extconf.rb code to make it shorter and easier to understand.

[chaadow]

hey @lfittl is it possible to cut a release please 🙏🏼 thanks

[chaadow]

there is also an incompatibility with ruby 4.0.0-preview2, if anyone got time to prepare for the release on december 25th, that would be great 🙏🏼 ( i have no clue what's happening otherwise i would have contributed )

#340