Bump ruby/setup-ruby

Bumps the actions-minor group with 1 update in the /.github/workflows directory: [ruby/setup-ruby](https://github.com/ruby/setup-ruby).


Updates `ruby/setup-ruby` from 1.275.0 to 1.278.0
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](https://github.com/ruby/setup-ruby/compare/d354de180d0c9e813cfddfcbdc079945d4be589b...4c24fa5ec04b2e79eb40571b1cee2a0d2b705771)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.278.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/__rubocop-multi-language.yml

@@ -56,7 +56,7 @@ jobs:
           use-all-platform-bundle: 'false'
           setup-kotlin: 'true'
       - name: Set up Ruby
-        uses: ruby/setup-ruby@d354de180d0c9e813cfddfcbdc079945d4be589b # v1.275.0
+        uses: ruby/setup-ruby@4c24fa5ec04b2e79eb40571b1cee2a0d2b705771 # v1.278.0
         with:
           ruby-version: 2.6
       - name: Install Code Scanning integration