build(deps-dev): bump @octokit/graphql-schema from 14.53.0 to 15.3.0

Bumps [@octokit/graphql-schema](https://github.com/octokit/graphql-schema) from 14.53.0 to 15.3.0.
- [Release notes](https://github.com/octokit/graphql-schema/releases)
- [Commits](octokit/graphql-schema@v14.53.0...v15.3.0)

---
updated-dependencies:
- dependency-name: "@octokit/graphql-schema"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -18,7 +18,7 @@
   },
   "homepage": "https://github.com/alaviss/setup-nimskull#readme",
   "devDependencies": {
-    "@octokit/graphql-schema": "^14.53.0",
+    "@octokit/graphql-schema": "^15.3.0",
     "@tsconfig/strictest": "^2.0.3",
     "@types/node": "^20.11.16",
     "@types/semver": "^7.5.6",