Merge pull request 'chore: Configure Renovate' (#5) from renovate/configure into main

Reviewed-on: #5

renovate.json

@@ -0,0 +1,22 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended"
+  ],
+  "separateMajorMinor": true,
+  "major": {
+    "enabled": false
+  },
+  "packageRules": [
+    {
+      "matchPackagePatterns": ["^symfony/"],
+      "allowedVersions": "^7.0",
+      "description": "Keep Symfony on 7.x LTS until EOL"
+    },
+    {
+      "matchPackageNames": ["phpunit/phpunit"],
+      "allowedVersions": "^12.0",
+      "description": "Stay on PHPUnit 12.x (compatible with Symfony 7 / PHP 8.2+)"
+    }
+  ]
+}