Install SVN

Author: westonruter

.github/workflows/build-test-measure.yml

@@ -408,6 +408,9 @@ jobs:
         # The JSON file is provided by the `shivammathur/setup-php` action. See https://github.com/shivammathur/setup-php#problem-matchers.
         run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
 
+      - name: Install SVN
+        run: sudo apt-get install subversion
+
       - name: Install WP tests
         if: needs.pre-run.outputs.changed-php-count > 0
         run: bash bin/ci/install-wp-tests.sh wordpress_test root '' 127.0.0.1:${{ job.services.mysql.ports['3306'] }} ${{ matrix.wp }} true