chore(deps-dev): bump eslint-config-next in /portfolio

Bumps [eslint-config-next](https://github.com/vercel/next.js/tree/HEAD/packages/eslint-config-next) from 16.2.11 to 16.3.1.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Commits](https://github.com/vercel/next.js/commits/v16.3.1/packages/eslint-config-next)

---
updated-dependencies:
- dependency-name: eslint-config-next
  dependency-version: 16.2.12
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

portfolio/package-lock.json

@@ -19,7 +19,7 @@
   },
   "devDependencies": {
     "eslint": "^9",
-    "eslint-config-next": "^16.2.11"
+    "eslint-config-next": "^16.3.1"
   },
   "overrides": {
     "nanoid": "3.3.18",