Drop SF4 support, allow SF7

Author: MKodde

composer.json

@@ -1,14 +1,14 @@
 {
   "name": "openconext/monitor-bundle",
   "type": "symfony-bundle",
-  "description": "A Symfony 4/5/6 bundle that facilitates health and info endpoints to a Symfony application. The bundle is backwards compatible with Symfony 2 projects.",
+  "description": "A Symfony 5/6/7 bundle that facilitates health and info endpoints to a Symfony application.",
   "keywords": ["SURFnet", "StepUp", "OpenConext", "monitoring", "health"],
   "license": "Apache-2.0",
   "minimum-stability": "stable",
   "require": {
-    "php": ">=7.2, <9.0-dev",
-    "symfony/dependency-injection": "^4.4|^5.0|^6.0",
-    "symfony/framework-bundle": "^4.4|^5.0|^6.0",
+    "php": ">=8.2, <9.0-dev",
+    "symfony/dependency-injection": "^5.4|^6.3|^7.0",
+    "symfony/framework-bundle": "^5.4|^6.3|^7.0",
     "doctrine/orm": "^2.9",
     "webmozart/assert": "^1.10"
   },
@@ -18,7 +18,7 @@
     "matthiasnoback/symfony-config-test": "^4.3",
     "phpdocumentor/reflection-docblock": "^5.2",
     "phpunit/php-token-stream": "^3.1.3|^4.0.4",
-    "phpunit/phpunit": "^8.5|^9.0",
+    "phpunit/phpunit": "^9.6|^10.4",
     "sebastian/phpcpd": "^4.1|^5.0|^6.0",
     "squizlabs/php_codesniffer": "^3.6",
     "malukenho/docheader": "^0.1.8",