fix(deps): fix renovate config requiring packageRules.matchDatasources (#474)

Fixes #473

renovate.json

diff --git a/renovate.json b/renovate.json
index bd39584..73c0af5 100644
--- a/renovate.json
+++ b/renovate.json
@@ -5,6 +5,7 @@
 
     "packageRules": [
         {
+            "matchDatasources": ["npm"],
             "stabilityDays": 3
         }
     ]