autofix: fixes from CI

Author: benjie

.cachedValidUrls.json

@@ -40,6 +40,7 @@
   "https://auth0.com/docs/tokens/id-token",
   "https://auth0.com/docs/tokens/overview-access-tokens",
   "https://benjie.dev/",
+  "https://benjie.dev/book",
   "https://blog.2ndquadrant.com/postgresql-10-identity-columns/",
   "https://blog.heroku.com/archives/2013/6/5/javascript_in_your_postgres",
   "https://blog.heroku.com/javascript_in_your_postgres",