Github Actions - Smaller matrix

Author: totten

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        php-version: ['7.3', '8.0', '8.4']
+        php-version: ['7.3', '8.4']
         composer-version: ['2.3.10', '--snapshot']
         exclude:
           - os: macos-latest