Newer Bundler patch version is installed

[manuelmeurer]

I noticed that not the exact Bundler version specified in Gemfile.lock is installed, but a newer patch version, if available.

In my case, I am using Bundler 2.2.3, then 2.2.4 is released, installed by setup-ruby, and then Rspec complains because it expects 2.2.3.

I think the fix should be to run gem install bundler -v 2.2.3 instead of gem install bundler -v ~> 2.2.3, so that the exact version is installed.

Happy to submit a PR! 😸

[eregon]

Good catch, yes PR welcome :)

Note that we still want values like bundler: 1 or bundler: 2 to work, so I guess we should use -v 2.2.3 only if it's an exact version (3 digits), and still ~> otherwise

[eregon]

Released in https://github.com/ruby/setup-ruby/releases/tag/v1.61.2