Bump ruby/setup-ruby from 1.279.0 to 1.281.0 (#93)

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.279.0 to 1.281.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@b90be12...675dd7b)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.281.0
  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/branch-protection.yaml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8
-      - uses: ruby/setup-ruby@b90be12699fdfcbee4440c2bba85f6f460446bb0
+      - uses: ruby/setup-ruby@675dd7ba1b06c8786a1480d89c384f5620a42647
         with:
           ruby-version: ${{ matrix.ruby }}
       - run: gem install bundler --no-document

.github/workflows/continuous-delivery.yaml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8
-      - uses: ruby/setup-ruby@b90be12699fdfcbee4440c2bba85f6f460446bb0
+      - uses: ruby/setup-ruby@675dd7ba1b06c8786a1480d89c384f5620a42647
         with:
           ruby-version: 3.4.4
       - run: gem install bundler --no-document