tweak matrix

Author: tacman

.github/workflows/ci.yaml

@@ -15,7 +15,7 @@ jobs:
             matrix:
                 php: [ 8.1, 8.2, 8.3, 8.4 ]
                 deps: [ highest ]
-                symfony: [ 5.4.*, 6.3.*, 6.4.*, 7.3.*, 8.0.* ]
+                symfony: [ 5.4.*, 6.4.* ]
                 include:
                     - php: 8.1
                       deps: lowest