add renovate

Author: veziak

.github/renovate.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:base",
+    ":automergeMinor"
+  ],
+  "labels": ["dependencies"],
+  "vulnerabilityAlerts": {
+    "labels": ["security"]
+  }
+}