Bump ruby/setup-ruby from 1.256.0 to 1.268.0

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.256.0 to 1.268.0.
- [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...8aeb6ff)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.268.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -23,7 +23,7 @@ jobs:
           path: ~/.npm
           key: ${{ runner.os }}-npm-${{ hashFiles('**/package-lock.json') }}
       - name: Set up Ruby ${{ matrix.version }}
-        uses: ruby/setup-ruby@efbf473cab83af4468e8606cc33eca9281bb213f # v1.256.0
+        uses: ruby/setup-ruby@8aeb6ff8030dd539317f8e1769a044873b56ea71 # v1.268.0
         with:
           ruby-version: ${{ matrix.version }}
           bundler-cache: true

.github/workflows/rubocop.yml

@@ -9,7 +9,7 @@ jobs:
     steps:
     - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - name: Set up Ruby
-      uses: ruby/setup-ruby@efbf473cab83af4468e8606cc33eca9281bb213f # v1.256.0
+      uses: ruby/setup-ruby@8aeb6ff8030dd539317f8e1769a044873b56ea71 # v1.268.0
       with:
         bundler-cache: true
     - name: Install gems