Fix build with new symfony versions

Author: kreemer

.github/workflows/build.yaml

@@ -12,7 +12,10 @@ jobs:
             fail-fast: false
             matrix:
                 php: [ '8.1', '8.2' ]
-                symfony: [ '6.3' ]
+                symfony: [ '6.3', '6.4', '7.0' ]
+                exclude:
+                    - php: '8.1'
+                      symfony: '7.0'
         steps:
             -   name: Checkout
                 uses: actions/checkout@v3
@@ -43,4 +46,4 @@ jobs:
                     composer update --prefer-dist --no-progress
             
             -   name: Run tests
-                run: vendor/bin/phpunit --coverage-text
+                run: vendor/bin/phpunit --coverage-text