#20 - update test workflow to include Symfony 6.4 compatibility

Author: xaviermarchegay

.github/workflows/test.yml

@@ -34,6 +34,11 @@ jobs:
             allowed-to-fail: false
             symfony-require: 6.4.*
             variant: symfony/symfony:"6.4.*"
+          - php-version: '8.2'
+            dependencies: highest
+            allowed-to-fail: false
+            symfony-require: 6.4.*
+            variant: symfony/symfony:"6.4.*"
           - php-version: '8.2'
             dependencies: highest
             allowed-to-fail: false