Bump postcss-nested from 6.2.0 to 7.0.2 in /fallctf.com

Bumps [postcss-nested](https://github.com/postcss/postcss-nested) from 6.2.0 to 7.0.2.
- [Release notes](https://github.com/postcss/postcss-nested/releases)
- [Changelog](https://github.com/postcss/postcss-nested/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss-nested@6.2.0...7.0.2)

---
updated-dependencies:
- dependency-name: postcss-nested
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

fallctf.com/package.json

@@ -36,7 +36,7 @@
   },
   "devDependencies": {
     "autoprefixer": "^10.4.20",
-    "postcss-nested": "^6.2.0",
+    "postcss-nested": "^7.0.2",
     "vite-plugin-static-copy": "^1.0.6"
   }
 }