chore(deps): bump ruby/setup-ruby in /.github/actions/setup

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.274.0 to 1.280.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@ed55d55...d5f787c)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.280.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/actions/setup/action.yml

@@ -15,7 +15,7 @@ runs:
 
   steps:
     - name: Set up Ruby
-      uses: ruby/setup-ruby@ed55d55e820a01da7d3e4863a8c51a61d73c3228 # pin@v1.274.0
+      uses: ruby/setup-ruby@d5f787ce339eb0767271bc01d922e85644c2c8ab # pin@v1.280.0
       with:
         ruby-version: ${{ inputs.ruby }}
         bundler-cache: true