deps: bump postcss from 8.1.3 to 8.1.4 (#807)

Bumps [postcss](https://github.com/postcss/postcss) from 8.1.3 to 8.1.4.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/master/CHANGELOG.md)
- [Commits](postcss/postcss@8.1.3...8.1.4)

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

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

packages/config-webpack/package.json

@@ -46,7 +46,7 @@
     "file-loader": "^6.1.1",
     "html-webpack-plugin": "^4.5.0",
     "is-docker": "^2.1.1",
-    "postcss": "^8.1.3",
+    "postcss": "^8.1.4",
     "postcss-browser-reporter": "^0.6.0",
     "postcss-import": "^13.0.0",
     "postcss-loader": "^4.0.4",

yarn.lock

@@ -13150,10 +13150,10 @@ postcss@7.0.32:
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^8.1.1, postcss@^8.1.3:
-  version "8.1.3"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.1.3.tgz#b25138b872ca9f9512c218d9d57ebb59015a9c39"
-  integrity sha512-AKsHGqd7HmXmL/EgyAjI4Gx719A5yQdt9HzyXrI8M/hzxfumecYS95kfvIt40UZqPVNoEt0Va1M3PG54XtNPbg==
+postcss@^8.1.1, postcss@^8.1.4:
+  version "8.1.4"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.1.4.tgz#356dfef367a70f3d04347f74560c85846e20e4c1"
+  integrity sha512-LfqcwgMq9LOd8pX7K2+r2HPitlIGC5p6PoZhVELlqhh2YGDVcXKpkCseqan73Hrdik6nBd2OvoDPUaP/oMj9hQ==
   dependencies:
     colorette "^1.2.1"
     line-column "^1.0.2"