fixes #1751

Job	Run time
Test with no Gemfile	21s
Test rubygems: version noops if the default is newer	7s
Test mise.toml	6s
Test with no Gemfile but with bundler-cache	22s
Test rubygems: version uses the Bundler installed by the rubygems update	10s
Test rubygems: version upgrades RubyGems to that version if the default is older	24s
test-matrix	9s
Test bundler: 1.x for old Ruby	20s
Test with rails7 gemfile	8s
Test .tool-versions	6s
Test with a minor Bundler version	23s
Test with a major Bundler version	21s
Test with rails8 gemfile	11s
Test with a Bundler pre/rc version	21s
Test rubygems: latest on 2.3	23s
Test gemfile depending on Bundler 1	26s
Test BUNDLED WITH Bundler dev	9s
Test rubygems: latest on 2.6	24s
Test with an older Bundler version than the one of the default gem	10s
Test rubygems: latest on 3.0	10s
Test rubygems: latest on 2.7	24s
Check windows*versions.json are up-to-date	7s
Test rubygems: latest on 2.0	9s
Test .ruby-version	5s
Test rubygems: latest on 2.5	24s
Check dist/index.js is up-to-date	12s
Test windows-toolchain: none	31s
Test with an exact Bundler version	21s
Test rubygems: latest on 3.2	10s
${{ matrix.os }} ${{ matrix.ruby }}	-1s
	7m 33s

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