chore(composer): enable sort-packages config

Keep require/require-dev sections alphabetically sorted on each
composer update to reduce noise in future dependency diffs.

Author: MirakuSan

.github/workflows/tests.yaml

@@ -13,6 +13,9 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - php: 8.3
+            symfony-version: 7.2.*
+            composer-flags: '--prefer-stable --ignore-platform-req=php+'
           - php: 8.3
             symfony-version: 7.3.*
             composer-flags: '--prefer-stable --ignore-platform-req=php+'

composer.json

@@ -31,6 +31,7 @@
         "phpstan/phpstan-phpunit": "^2.0"
     },
     "config": {
+        "sort-packages": true,
         "allow-plugins": {
             "phpstan/extension-installer": true
         }