Update SVN commands

Author: pdobrescu

.github/workflows/ci.yml

@@ -99,9 +99,10 @@ jobs:
         run: |
           CONTAINER_ID=$(docker-compose -f .github/docker/docker-compose.yml ps -q wordpress)
           echo "Copying WordPress tests..."
-          docker exec $CONTAINER_ID sudo mkdir -p /var/www/html/tests/
-          docker exec $CONTAINER_ID wp_version=$(wp core version); svn export --quiet --ignore-externals https://develop.svn.wordpress.org/$wp_version/tests/phpunit/includes/ /var/www/html/tests/includes/
-          ls -alh /var/www/html/tests/includes/
+          docker exec $CONTAINER_ID mkdir -p /var/www/html/tests/
+          docker exec $CONTAINER_ID bash -c "wp_version=$(wp core version); \
+            svn export --quiet --ignore-externals https://develop.svn.wordpress.org/$wp_version/tests/phpunit/includes/ /var/www/html/tests/includes/; \
+            ls -alh /var/www/html/tests/includes/"
 
       #Configure GH token to access the plugin-modules repo, which is private
       - name: Configure GitHub OAuth for Composer