Remove tests for symfony 5.3 and new php versions

Author: Kleinkind

.github/workflows/ci.yaml

@@ -109,18 +109,12 @@ jobs:
           - php-version: '7.4'
             composer-options: '--prefer-stable'
             symfony-version: '5.4.*'
-          - php-version: '8.0'
-            composer-options: '--prefer-stable'
-            symfony-version: '5.3.*'
           - php-version: '8.0'
             composer-options: '--prefer-stable'
             symfony-version: '5.4.*'
           - php-version: '8.0'
             composer-options: '--prefer-stable'
             symfony-version: '6.0.*'
-          - php-version: '8.1'
-            composer-options: '--prefer-stable'
-            symfony-version: '5.3.*'
           - php-version: '8.1'
             composer-options: '--prefer-stable'
             symfony-version: '5.4.*'