build(deps-dev): bump postcss from 8.4.24 to 8.4.31 in /in-app/v1

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.24 to 8.4.31.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.24...8.4.31)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
...

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

in-app/v1/package.json

@@ -47,7 +47,7 @@
     "@vitejs/plugin-legacy": "^4.0.4",
     "@vitejs/plugin-react": "^4.0.0",
     "autoprefixer": "^10.4.14",
-    "postcss": "^8.4.24",
+    "postcss": "^8.4.31",
     "postcss-preset-env": "^8.4.2",
     "tailwindcss": "^3.3.2",
     "typescript": "^4.8.4",