chore(deps): bump the npm_and_yarn group across 2 directories with 2 updates (#2446)

Bumps the npm_and_yarn group with 1 update in the / directory: [js-yaml](https://github.com/nodeca/js-yaml).
Bumps the npm_and_yarn group with 1 update in the /website directory: [postcss](https://github.com/postcss/postcss).


Updates `js-yaml` from 5.2.1 to 5.2.2
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodeca/js-yaml/compare/5.2.1...5.2.2)

Updates `js-yaml` from 5.2.1 to 5.2.2
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodeca/js-yaml/compare/5.2.1...5.2.2)

Updates `postcss` from 8.5.16 to 8.5.23
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/8.5.16...8.5.23)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 5.2.2
  dependency-type: direct:production
- dependency-name: postcss
  dependency-version: 8.5.23
  dependency-type: indirect
...

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

package-lock.json

@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "js-yaml": "^5.2.1",
+        "js-yaml": "^5.2.2",
         "vfile": "^6.0.3",
         "vfile-matter": "^5.0.1"
       },
@@ -643,9 +643,9 @@
       }
     },
     "node_modules/js-yaml": {
-      "version": "5.2.1",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-5.2.1.tgz",
-      "integrity": "sha512-zfLtNfQqxVqq3uaTqSkh4x4hZw3KHobGUA0fJUj4wawW8bsQLTVqpHdXSIzidh7o+4lEW36tANuAGdaFx6Zgnw==",
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-5.2.2.tgz",
+      "integrity": "sha512-dayzUzKkJ1MkuUtZglSebU43utNXH0OWQByK9rKOOuYIO8M5TV1y+n8ALMdG0rdzBnfNkOmZEqrURepb0ejqBw==",
       "funding": [
         {
           "type": "github",