Fix Renovate config to be able to resolve packages from alphaDev repo

Author: janseeger

renovate.json

@@ -2,5 +2,14 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:recommended"
+  ],
+  "packageRules": [
+    {
+      "matchDatasources": ["maven"],
+      "registryUrls": [
+        "https://maven.alphadev.net/releases",
+        "https://repo1.maven.org/maven2/"
+      ]
+    }
   ]
 }