configure renovate

Author: stefanseifert

.github/renovate.json

@@ -0,0 +1,8 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended",
+    ":semanticCommitsDisabled"
+  ],
+  "labels": ["dependencies"]
+}