Bump postcss from 8.4.18 to 8.4.19

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.18 to 8.4.19.
- [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/8.4.18...8.4.19)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package-lock.json

@@ -2737,9 +2737,9 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.4.18",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.18.tgz",
-      "integrity": "sha512-Wi8mWhncLJm11GATDaQKobXSNEYGUHeQLiQqDFG1qQ5UTDPTEvKw0Xt5NsTpktGTwLps3ByrWsBrG0rB8YQ9oA==",
+      "version": "8.4.19",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.19.tgz",
+      "integrity": "sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==",
       "dev": true,
       "requires": {
         "nanoid": "^3.3.4",

package.json

@@ -26,7 +26,7 @@
   "devDependencies": {
     "autoprefixer": "^10.4.13",
     "eslint-plugin-compat": "^4.0.2",
-    "postcss": "^8.4.18",
+    "postcss": "^8.4.19",
     "postcss-cli": "^10.0.0",
     "prettier": "2.7.1",
     "xo": "^0.52.4"