chore(deps-dev): bump autoprefixer in /site in the all group (#703)

Bumps the all group in /site with 1 update: [autoprefixer](https://github.com/postcss/autoprefixer).


Updates `autoprefixer` from 10.4.21 to 10.4.22
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/main/CHANGELOG.md)
- [Commits](postcss/autoprefixer@10.4.21...10.4.22)

---
updated-dependencies:
- dependency-name: autoprefixer
  dependency-version: 10.4.22
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: all
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

site/package-lock.json

@@ -1,6 +1,6 @@
 {
     "devDependencies": {
-      "autoprefixer": "^10.4.21",
+      "autoprefixer": "^10.4.22",
       "docsy": "github:google/docsy",
       "postcss": "^8.5.6",
       "postcss-cli": "^11.0.1"