Bump postcss from 8.4.24 to 8.4.31

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>

Author: dependabot[bot]

package-lock.json

@@ -31,7 +31,7 @@
     "eslint-plugin-import": "^2.25.3",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^6.0.0",
-    "postcss": "^8.4.5",
+    "postcss": "^8.4.31",
     "prettier": "^2.8.0",
     "react-svg": "^16.1.15",
     "tailwindcss": "^3.0.14",