gem install bundler Step Failing for docker-push-uat-image.yml Workflow

[aaronskiba]

Example
https://github.com/portagenetwork/roadmap/actions/runs/7508020743/job/20442836823

The following error is shown when attempting to execute the Build and push Docker image step of the workflow:

#11 [ 6/15] RUN gem install bundler
#11 14.04 ERROR:  Error installing bundler:
#11 14.04 	The last version of bundler (>= 0) to support your Ruby & RubyGems was 2.4.22. Try installing it with `gem install bundler -v 2.4.22`
#11 14.04 	bundler requires Ruby version >= 3.0.0. The current ruby version is 2.7.6.219.
#11 ERROR: process "/bin/sh -c gem install bundler" did not complete successfully: exit code: 1
------
 > [ 6/15] RUN gem install bundler:
14.04 ERROR:  Error installing bundler:
14.04 	The last version of bundler (>= 0) to support your Ruby & RubyGems was 2.4.22. Try installing it with `gem install bundler -v 2.4.22`
14.04 	bundler requires Ruby version >= 3.0.0. The current ruby version is 2.7.6.219.
------
Dockerfile.production:36
--------------------
  34 |     
  35 |     WORKDIR $INSTALL_PATH
  36 | >>> RUN gem install bundler
  37 |     COPY Gemfile* $INSTALL_PATH
  38 |     
--------------------
ERROR: failed to solve: process "/bin/sh -c gem install bundler" did not complete successfully: exit code: 1
Error: buildx call failed with: ERROR: failed to solve: process "/bin/sh -c gem install bundler" did not complete successfully: exit code: 1

Using my own fork of the repo, I was able to replicate the error. I was also able to fix the workflow by applying the following commit to in Dockerfile.production:

https://github.com/aaronskiba/roadmap/actions/runs/7508266562/job/20443403195

[aaronskiba]

The latest bundler versions are only compatible with ruby >= 3.0.0
https://rubygems.org/gems/bundler/versions

[aaronskiba]

The following warning is also outputted from a few GitHub Action workflows:

Your RubyGems version (3.1.6) has a bug that prevents required_ruby_version from working for Bundler. Any scripts that use gem install bundler will break as soon as Bundler drops support for your Ruby version. Please upgrade RubyGems to avoid future breakage and silence this warning by running gem update --system 3.2.3