Bump ruby/setup-ruby from 1.256.0 to 1.257.0 (#647)

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.256.0 to 1.257.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@efbf473...4451173)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.257.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
         run: "rm ${{ matrix.gemfile }}.lock"
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@efbf473cab83af4468e8606cc33eca9281bb213f # v1.256.0
+        uses: ruby/setup-ruby@44511735964dcb71245e7e55f72539531f7bc0eb # v1.257.0
         with:
           bundler: latest
           ruby-version: ${{ matrix.ruby }}
@@ -47,7 +47,7 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@efbf473cab83af4468e8606cc33eca9281bb213f # v1.256.0
+        uses: ruby/setup-ruby@44511735964dcb71245e7e55f72539531f7bc0eb # v1.257.0
         with:
           bundler: latest
           bundler-cache: true