build(deps): bump postcss from 8.4.27 to 8.4.28 (#1975)

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.27 to 8.4.28.
- [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/8.4.27...8.4.28)

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

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

package.json

@@ -78,7 +78,7 @@
         "monaco-themes": "^0.4.4",
         "mq-polyfill": "1.1.8",
         "navigator.locks": "^0.8.6",
-        "postcss": "^8.4.27",
+        "postcss": "^8.4.28",
         "postcss-flexbugs-fixes": "^5.0.2",
         "postcss-loader": "^7.3.3",
         "postcss-normalize": "^10.0.1",

yarn.lock

@@ -2699,7 +2699,7 @@ __metadata:
     monaco-themes: ^0.4.4
     mq-polyfill: 1.1.8
     navigator.locks: ^0.8.6
-    postcss: ^8.4.27
+    postcss: ^8.4.28
     postcss-flexbugs-fixes: ^5.0.2
     postcss-loader: ^7.3.3
     postcss-normalize: ^10.0.1
@@ -13509,7 +13509,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:^8.2.14, postcss@npm:^8.4.21, postcss@npm:^8.4.23, postcss@npm:^8.4.24, postcss@npm:^8.4.27":
+"postcss@npm:^8.2.14, postcss@npm:^8.4.21, postcss@npm:^8.4.23, postcss@npm:^8.4.24":
   version: 8.4.27
   resolution: "postcss@npm:8.4.27"
   dependencies:
@@ -13520,6 +13520,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"postcss@npm:^8.4.28":
+  version: 8.4.28
+  resolution: "postcss@npm:8.4.28"
+  dependencies:
+    nanoid: ^3.3.6
+    picocolors: ^1.0.0
+    source-map-js: ^1.0.2
+  checksum: f605c24a36f7e400bad379735fbfc893ccb8d293ad6d419bb824db77cdcb69f43d614ef35f9f7091f32ca588d130ec60dbcf53b366e6bf88a8a64bbeb3c05f6d
+  languageName: node
+  linkType: hard
+
 "prelude-ls@npm:^1.2.1":
   version: 1.2.1
   resolution: "prelude-ls@npm:1.2.1"