Bump postcss from 8.4.14 to 8.4.31

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.14 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@8.4.14...8.4.31)

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

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

Author: dependabot[bot]

package-lock.json

@@ -9,7 +9,7 @@
     "devDependencies": {
         "@tailwindcss/typography": "^0.5.7",
         "autoprefixer": "^10.4.7",
-        "postcss": "^8.4.14",
+        "postcss": "^8.4.31",
         "tailwindcss": "^3.1.4"
     },
     "dependencies": {