Bump ruby/setup-ruby from 1.202.0 to 1.263.0 (#95)

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.202.0 to 1.263.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@a2bbe5b...0481980)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.263.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/rubocop.yml

@@ -15,7 +15,7 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@a2bbe5b1b236842c1cb7dd11e8e3b51e0a616acc
+        uses: ruby/setup-ruby@0481980f17b760ef6bca5e8c55809102a0af1e5a
         with:
           ruby-version: .ruby-version
           bundler-cache: true

.github/workflows/tests.yml

@@ -18,7 +18,7 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
 
       - name: Setup Ruby
-        uses: ruby/setup-ruby@a2bbe5b1b236842c1cb7dd11e8e3b51e0a616acc
+        uses: ruby/setup-ruby@0481980f17b760ef6bca5e8c55809102a0af1e5a
         with:
           ruby-version: .ruby-version
           bundler-cache: true