Update renovate.json (#55)

Author: tr4nt0r

renovate.json

@@ -2,5 +2,21 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:recommended"
+  ],
+  "rebaseWhen": "behind-base-branch",
+    "labels": [
+    ":recycle: dependencies"
+  ],
+  "commitMessageTopic": "{{depName}}",
+  "commitMessageAction": "Bump",
+  "packageRules": [
+    {
+      "matchManagers": [
+        "pip_requirements"
+      ],
+      "addLabels": [
+        ":snake: python"
+      ]
+    }
   ]
 }