Revert "ci(symfony): run on 7.4 and 8.0"

This reverts commit f531538

Author: DjordyKoert

.github/workflows/continuous-integration.yml

@@ -22,6 +22,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     strategy:
+      fail-fast: false
       matrix:
         test-group:
           - core