Update codegen types and enforce keeping types up-to-date (#7580)

Codegen wasn't detecting our operation since it needed a "magic GraphQL
comment" to be picked up.

We also had no CI step to enforce that these stay current, so I added
that as well.

.changeset/gorgeous-chairs-invent.md

@@ -0,0 +1,2 @@
+---
+---

.circleci/config.yml

@@ -107,6 +107,13 @@ jobs:
       - setup-node
       - run: npm run spell-check
 
+  Codegen check:
+    docker:
+    - image: cimg/base:stable
+    steps:
+      - setup-node
+      - run: npm run codegen-check
+
   # We make CI fail if any file contains FIX and ME right next to each other.
   # This means that when working on a big PR, you can throw in notes that you
   # are forced to come back to before merging the PR.  Note that we don't block
@@ -140,6 +147,7 @@ workflows:
       - Prettier
       - ESLint
       - Spell check
+      - Codegen check
       - Smoke test built package
       - Full incremental delivery tests with graphql-js 17 canary
       - Changesets

package.json

@@ -21,6 +21,7 @@
     "coverage": "npm test -- --coverage",
     "coverage:upload": "codecov",
     "codegen": "graphql-codegen",
+    "codegen-check": "(npm run codegen && npm run compile) || (echo 'Current schema types are incompatible with existing usage. Update generated types with `npm run codegen` and resolve any TypeScript errors.'; exit 1)",
     "lint": "eslint .",
     "prettier-check": "prettier --check .",
     "prettier-fix": "prettier --write .",