build(deps): bump graphql from 16.11.0 to 16.12.0 (#544)

Bumps [graphql](https://github.com/graphql/graphql-js) from 16.11.0 to 16.12.0.
- [Release notes](https://github.com/graphql/graphql-js/releases)
- [Commits](graphql/graphql-js@v16.11.0...v16.12.0)

---
updated-dependencies:
- dependency-name: graphql
  dependency-version: 16.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -7,7 +7,7 @@
   },
   "dependencies": {
     "@cloudflare/pages-plugin-graphql": "1.0.4",
-    "graphql": "16.11.0"
+    "graphql": "16.12.0"
   },
   "devDependencies": {
     "@cloudflare/workers-types": "4.20250917.0",