Test specific dev versions of Symfony

Author: jmsche

.github/workflows/continuous-integration.yml

@@ -23,12 +23,12 @@ jobs:
         symfony-version:
           - '6.4.*'
           - '7.3.*'
-          - '7.4.x-dev'
+          - '7.4.*@dev'
         include:
           - php-version: '8.4'
-            symfony-version: '8.0.x-dev'
+            symfony-version: '8.0.*@dev'
           - php-version: '8.5'
-            symfony-version: '8.0.x-dev'
+            symfony-version: '8.0.*@dev'
 
     steps:
       - name: Checkout