Bump eslint-config-next from 14.2.8 to 15.0.3 (#1220)

Bumps [eslint-config-next](https://github.com/vercel/next.js/tree/HEAD/packages/eslint-config-next) from 14.2.8 to 15.0.3.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/commits/v15.0.3/packages/eslint-config-next)

---
updated-dependencies:
- dependency-name: eslint-config-next
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -27,7 +27,7 @@
     "@types/react": "^17.0.43",
     "@types/react-dom": "^18.3.0",
     "eslint": "8.57.1",
-    "eslint-config-next": "14.2.8",
+    "eslint-config-next": "15.0.3",
     "firebase-tools": "^13.22.1",
     "typescript": "^5.6.2"
   },