Move check-new-windows-versions.yml workflow from ruby/ruby-builder to ruby/setup-ruby #1766

Job	Run time
Test with no Gemfile	23s
Test with no Gemfile but with bundler-cache	22s
Test .tool-versions	7s
Test with rails8 gemfile	15s
Test rubygems: version uses the Bundler installed by the rubygems update	11s
Test .ruby-version	6s
Test with a Bundler pre/rc version	22s
Test with rails7 gemfile	15s
Test windows-toolchain: none	30s
Test gemfile depending on Bundler 1	25s
Test rubygems: version upgrades RubyGems to that version if the default is older	23s
Test mise.toml	4s
Test bundler: 1.x for old Ruby	21s
Test with a minor Bundler version	20s
Check windows*versions.json are up-to-date	7s
Test rubygems: version noops if the default is newer	6s
Test rubygems: latest on 2.3	22s
Test with an exact Bundler version	21s
Test with a major Bundler version	23s
Check dist/index.js is up-to-date	12s
Test rubygems: latest on 3.2	11s
Test rubygems: latest on 2.0	10s
Test BUNDLED WITH Bundler dev	9s
Test with an older Bundler version than the one of the default gem	8s
Test rubygems: latest on 3.0	9s
Test rubygems: latest on 2.5	24s
Test rubygems: latest on 2.7	23s
test-matrix	6s
Test rubygems: latest on 2.6	23s
${{ matrix.os }} ${{ matrix.ruby }}	-1s
	7m 37s

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