Bump postcss from 8.3.6 to 8.3.9 (#1381)

Bumps [postcss](https://github.com/postcss/postcss) from 8.3.6 to 8.3.9.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.3.6...8.3.9)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
  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

@@ -48,7 +48,7 @@
     "lint-staged": "^11.2.0",
     "markdown-it": "^12.2.0",
     "npm-run-all": "^4.1.5",
-    "postcss": "^8.3.6",
+    "postcss": "^8.3.9",
     "postcss-cli": "^8.3.1",
     "postcss-header": "^3.0.1",
     "postcss-import": "^14.0.2",

yarn.lock

@@ -405,7 +405,7 @@ colord@^2.6:
   resolved "https://registry.yarnpkg.com/colord/-/colord-2.7.0.tgz#706ea36fe0cd651b585eb142fe64b6480185270e"
   integrity sha512-pZJBqsHz+pYyw3zpX6ZRXWoCHM1/cvFikY9TV8G3zcejCaKE0lhankoj8iScyrrePA8C7yJ5FStfA9zbcOnw7Q==
 
-colorette@^1.2.1, colorette@^1.2.2, colorette@^1.4.0:
+colorette@^1.2.1, colorette@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.4.0.tgz#5190fbb87276259a86ad700bff2c6d6faa3fca40"
   integrity sha512-Y2oEozpomLn7Q3HFP7dpww7AtMJplbM9lGZP6RDfHqmbeRjiwRg4n6VM6j4KLmRke85uWEI7JqF17f3pqdRA0g==
@@ -1488,10 +1488,10 @@ ms@2.1.2:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
   integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
 
-nanoid@^3.1.23:
-  version "3.1.23"
-  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.23.tgz#f744086ce7c2bc47ee0a8472574d5c78e4183a81"
-  integrity sha512-FiB0kzdP0FFVGDKlRLEQ1BgDzU87dy5NnzjeW9YZNt+/c3+q82EQDUwniSAUxp/F0gFNI1ZhKU1FqYsMuqZVnw==
+nanoid@^3.1.28:
+  version "3.1.29"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.29.tgz#214fb2d7a33e1a5bef4757b779dfaeb6a4e5aeb4"
+  integrity sha512-dW2pUSGZ8ZnCFIlBIA31SV8huOGCHb6OwzVCc7A69rb/a+SgPBwfmLvK5TKQ3INPbRkcI8a/Owo0XbiTNH19wg==
 
 natural-compare@^1.4.0:
   version "1.4.0"
@@ -2308,13 +2308,13 @@ postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.2, postcss@^7.0.32, postcss@^7.0.
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^8.3.6:
-  version "8.3.6"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.6.tgz#2730dd76a97969f37f53b9a6096197be311cc4ea"
-  integrity sha512-wG1cc/JhRgdqB6WHEuyLTedf3KIRuD0hG6ldkFEZNCjRxiC+3i6kkWUUbiJQayP28iwG35cEmAbe98585BYV0A==
+postcss@^8.3.9:
+  version "8.3.9"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.9.tgz#98754caa06c4ee9eb59cc48bd073bb6bd3437c31"
+  integrity sha512-f/ZFyAKh9Dnqytx5X62jgjhhzttjZS7hMsohcI7HEI5tjELX/HxCy3EFhsRxyzGvrzFF+82XPvCS8T9TFleVJw==
   dependencies:
-    colorette "^1.2.2"
-    nanoid "^3.1.23"
+    nanoid "^3.1.28"
+    picocolors "^0.2.1"
     source-map-js "^0.6.2"
 
 prelude-ls@^1.2.1: