[UAS-SCOUT] Update PHPUnit version and PHP platform configuration

- Upgraded PHPUnit to version 11 in CI configuration.
- Set PHP platform version to 8.3 in composer.json for compatibility.
- Adjusted dependencies in composer.lock to align with new requirements.

Author: daanrijpkemacb

.github/workflows/ci.yml

@@ -41,6 +41,6 @@ jobs:
               uses: php-actions/phpunit@v4
               with:
                   php_version: ${{ matrix.php-version }}
-                  version: 9.5
+                  version: 11
                   bootstrap: ./vendor/autoload.php
                   configuration: ./.github/workflows/phpunit.xml

composer.json

@@ -14,6 +14,11 @@
     "support": {
         "issues": "https://github.com/bluem-development/bluem-php"
     },
+    "config": {
+        "platform": {
+            "php": "8.3"
+        }
+    },
     "require": {
         "php": ">=8.3",
         "ext-dom": "*",