chore(config): migrate renovate config (#236)

Author: renovate[bot]

renovate.json

@@ -1,9 +1,12 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": ["github>sanity-io/renovate-presets//ecosystem/auto", ":reviewer(team:ecosystem)"],
+  "extends": [
+    "github>sanity-io/renovate-presets//ecosystem/auto",
+    ":reviewer(team:ecosystem)"
+  ],
   "packageRules": [
     {
-      "packageNames": ["gatsby-source-sanity"],
+      "matchPackageNames": ["gatsby-source-sanity"],
       "rangeStrategy": "pin",
       "schedule": ["at any time"]
     },