build(deps): bump ruby/setup-ruby from 1.290.0 to 1.299.0 (#5)

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.290.0 to 1.299.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@6ca151f...3ff19f5)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.299.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/linux.yml

@@ -26,7 +26,7 @@ jobs:
     name: Ruby ${{ matrix.ruby }} unit testing on ${{ matrix.os }}
     steps:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-    - uses: ruby/setup-ruby@6ca151fd1bfcfd6fe0c4eb6837eb0584d0134a0c # v1.290.0
+    - uses: ruby/setup-ruby@3ff19f5e2baf30647122352b96108b1fbe250c64 # v1.299.0
       with:
         ruby-version: ${{ matrix.ruby }}
         rubygems: latest