chore(renovate.json): do not trigger release on devDependecy update

Author: halfzebra

renovate.json

@@ -7,5 +7,11 @@
     "before 5am every weekday",
     "every weekend"
   ],
-  "commitMessagePrefix": "fix(package.json): "
+  "commitMessagePrefix": "fix(package.json): ",
+  "packageRules": [
+    {
+      "depTypeList": ["devDependencies"],
+      "commitMessagePrefix": "chore(package.json): "
+    }
+  ]
 }