autofix: fixes from CI

Author: benjie

.cachedValidUrls.json

@@ -139,6 +139,7 @@
   "https://github.com/graphile/graphile-engine/tree/master/packages/graphile-build-pg/src/plugins",
   "https://github.com/graphile/graphile-engine/tree/master/packages/graphql-parse-resolve-info",
   "https://github.com/graphile/graphile.github.io",
+  "https://github.com/graphile/graphile.github.io/blob/6693b91d5dd9980b676876524d0a14d370800dcf/src/news/2025-06-06-last-epic-solved.md",
   "https://github.com/graphile/graphile.github.io/issues/161",
   "https://github.com/graphile/livesotope",
   "https://github.com/graphile/migrate",
@@ -249,6 +250,7 @@
   "https://gitter.im/graphile/postgraphile",
   "https://gosteelhead.com/",
   "https://grafast.org",
+  "https://grafast.org/grafast/polymorphism",
   "https://graphql-code-generator.com/",
   "https://graphql-code-generator.com/docs/plugins/index/",
   "https://graphql-finland.fi/2018/",