Support Ruby 3.0.3 releases

[jrgriffiniii]

Derived from samvera/maintenance#77

[jrgriffiniii]

Rails 5.2.z and 5.1.z releases are failing with the following on Ruby 3.0.3:

(https://app.circleci.com/pipelines/github/samvera/browse-everything/201/workflows/20d16daa-34be-43b0-850f-66e45f32ee2f/jobs/1466)

Perhaps this is somehow related to the Ruby release which is being used? Please note that the Docker Image is referencing the following Ruby directory:

/home/circleci/project/vendor/bundle/ruby/3.0.0

[jrgriffiniii]

samvera/samvera-circleci-orb#55 is blocking this.

[jrgriffiniii]

There are now additional failures for the CircleCI build for 3.0.3 Ruby releases:

Using bootstrap 4.6.1
Errno::ENOENT: No such file or directory @ rb_sysopen -
/home/circleci/project/vendor/bundle/ruby/3.0.0/specifications/puma-3.12.6.gemspec
An error occurred while installing sync (0.5.0), and Bundler cannot
continue.
Make sure that `gem install sync -v '0.5.0' --source 'https://rubygems.org/'`
succeeds before bundling.

In Gemfile:
  coveralls was resolved to 0.7.1, which depends on
    term-ansicolor was resolved to 1.7.1, which depends on
      tins was resolved to 1.31.0, which depends on
        sync

Exited with code exit status 5
CircleCI received exit code 5

[jrgriffiniii]

samvera/maintenance#81 (comment) was discovered when addressing this. I shall adjust accordingly.

[jrochkind]

Rails 5.2 is not supported on ruby 3, so that test failure is expected. Just don't test 5.2 on Ruby 3+.

rails/rails#40938 (comment)