Bump the npm_and_yarn group across 1 directory with 2 updates

Bumps the npm_and_yarn group with 2 updates in the / directory: [next](https://github.com/vercel/next.js) and [postcss](https://github.com/postcss/postcss).


Updates `next` from 14.1.2 to 14.1.3
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.1.2...v14.1.3)

Updates `postcss` from 8.4.33 to 8.4.38
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.33...8.4.38)

---
updated-dependencies:
- dependency-name: next
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: postcss
  dependency-type: direct:development
  dependency-group: npm_and_yarn
...

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

package.json

@@ -26,7 +26,7 @@
     "js-cookie": "^3.0.5",
     "lucide-react": "^0.292.0",
     "nanoid": "^4.0.2",
-    "next": "14.1.2",
+    "next": "14.1.3",
     "next-auth": "4.24.5",
     "next-mdx-remote": "^4.4.1",
     "novel": "^0.3.1",
@@ -53,7 +53,7 @@
     "autoprefixer": "^10.4.16",
     "eslint": "8.53.0",
     "eslint-config-next": "^14.0.2",
-    "postcss": "^8.4.33",
+    "postcss": "^8.4.38",
     "prettier": "^3.1.0",
     "prettier-plugin-tailwindcss": "^0.5.7",
     "prisma": "^5.5.2",