chore(deps): bump ruby/setup-ruby in the dependencies group

Bumps the dependencies group with 1 update: [ruby/setup-ruby](https://github.com/ruby/setup-ruby).


Updates `ruby/setup-ruby` from 1.205.0 to 1.206.0
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@540484a...bfefad8)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/tests.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Set up Git repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - name: Set up Ruby
-        uses: ruby/setup-ruby@540484a3c0f308b08619664ec40bf6c371d172c3 # v1
+        uses: ruby/setup-ruby@bfefad842bb982ff05b233bcbc1571d97a87e69f # v1
         with:
           bundler-cache: true
       - name: Set up Node