chore(deps): update ruby/setup-ruby action to v1.308.0 (#284)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/gem-release.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           ref: ${{ github.event.release.tag_name || inputs.tag }}
 
-      - uses: ruby/setup-ruby@6aaa311d81eba98ae12eaffbcb63296ace0efcde # v1.307.0
+      - uses: ruby/setup-ruby@97ecb7b512899eb71ab1bf2310a624c6f1589ac6 # v1.308.0
       - run: bundle install
 
       - name: Build Gem