autofix: fixes from CI

Author: benjie

.cachedValidUrls.json

@@ -240,6 +240,7 @@
   "https://relay.dev/docs/en/mutations",
   "https://relay.dev/docs/guides/network-layer/",
   "https://spec.graphql.org/June2018/",
+  "https://stellate.co/",
   "https://store.graphile.com",
   "https://store.graphile.com/eulas/postgraphile-pro/",
   "https://store.graphile.com/validate",