update CI to test Symfony versions 7.3, 7.4 and 8.0

Author: EmilePerron

.github/workflows/ci.yml

@@ -48,7 +48,7 @@ jobs:
         strategy:
             matrix:
                 php_version: ["8.2", "8.3", "8.4"]
-                symfony_version: ["6.4", "7.0", "7.1", "7.2"]
+                symfony_version: ["6.4", "7.0", "7.1", "7.2", "7.3", "7.4", "8.0"]
         name: E2E tests
         runs-on: ubuntu-latest
         steps: