chore(deps): update dependency ruby to v3.4.9

Author: renovate-bot

.github/workflows/spanner-integration-tests-against-emulator.yaml

@@ -27,7 +27,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.2'
+          ruby-version: '3.4.9'
       - run: ruby --version
       - run: bundle install
       - run: bundle exec rake acceptance