Update dependency mutex_m to v0.3.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
mutex_m	0.2.0 -> 0.3.0

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Release Notes

ruby/mutex_m (mutex_m)

v0.3.0

Compare Source

What's Changed

• mutex_m.rb: Drop a superfluous .rb suffix in docs by @​olleolleolle in https://github.com/ruby/mutex_m/pull/16
• Bundle RBS files by @​soutaro in https://github.com/ruby/mutex_m/pull/15
• Refactor gemspec by @​mblumtritt in https://github.com/ruby/mutex_m/pull/17
• Exclude older than 2.6 on macos-14 by @​nobu in https://github.com/ruby/mutex_m/pull/19
• Move development dependencies to Gemfile by @​nobu in https://github.com/ruby/mutex_m/pull/18
• Make Mutex_m work with Module#prepend by @​jeremyevans in https://github.com/ruby/mutex_m/pull/6
• Publish RBS by @​ksss in https://github.com/ruby/mutex_m/pull/20

New Contributors

• @​soutaro made their first contribution in https://github.com/ruby/mutex_m/pull/15
• @​mblumtritt made their first contribution in https://github.com/ruby/mutex_m/pull/17
• @​nobu made their first contribution in https://github.com/ruby/mutex_m/pull/19
• @​jeremyevans made their first contribution in https://github.com/ruby/mutex_m/pull/6
• @​ksss made their first contribution in https://github.com/ruby/mutex_m/pull/20

Full Changelog: ruby/mutex_m@v0.2.0...v0.3.0

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