Bump ruby/setup-ruby from 1.244.0 to 1.245.0 (#1762)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.245.0
  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/exercise-tests.yml

@@ -22,7 +22,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@13e7a03dc3ac6c3798f4570bfead2aed4d96abfb
+        uses: ruby/setup-ruby@a4effe49ee8ee5b8b5091268c473a4628afb5651
         with:
           ruby-version: ${{ matrix.ruby-version }}
           bundler-cache: true