Attempted fix for PHAR rate-limit

Author: tvdijen

.github/workflows/php.yml

@@ -23,7 +23,7 @@ jobs:
     uses: simplesamlphp/simplesamlphp-test-framework/.github/workflows/reusable_phplinter.yml@v1.11.6
     with:
       php-version: ${{ matrix.php-version }}
-      token: ${{ secrets.PAT_TOKEN }}
+      token: "${{ secrets.PAT_TOKEN }}"
 
   linter:
     name: 'Linter'