Merge pull request #1 from mitodl/renovate/configure

chore: Configure Renovate

Author: blarghmatey

renovate.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "local>mitodl/.github:renovate-config"
+  ]
+}