Bump eslint-plugin-prettier in /user-auth/graphtutorial

Bumps [eslint-plugin-prettier](https://github.com/prettier/eslint-plugin-prettier) from 5.5.6 to 5.5.7.
- [Release notes](https://github.com/prettier/eslint-plugin-prettier/releases)
- [Changelog](https://github.com/prettier/eslint-plugin-prettier/blob/main/CHANGELOG.md)
- [Commits](prettier/eslint-plugin-prettier@v5.5.6...v5.5.7)

---
updated-dependencies:
- dependency-name: eslint-plugin-prettier
  dependency-version: 5.5.7
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

user-auth/graphtutorial/package-lock.json

@@ -15,7 +15,7 @@
     "@tony.ganchev/eslint-plugin-header": "^3.4.4",
     "eslint": "^10.12.0",
     "eslint-config-prettier": "^10.1.8",
-    "eslint-plugin-prettier": "^5.5.6",
+    "eslint-plugin-prettier": "^5.5.7",
     "prettier": "^3.9.10"
   },
   "dependencies": {