chore(deps-dev): bump postcss from 8.3.8 to 8.3.9 (mermaid-js#429)

Bumps [postcss](https://github.com/postcss/postcss) from 8.3.8 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@8.3.8...8.3.9)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

package.json

@@ -37,7 +37,7 @@
 		"lint-staged": "^11.2.0",
 		"mocha": "^9.1.2",
 		"node-html-parser": "^4.1.5",
-		"postcss": "^8.3.8",
+		"postcss": "^8.3.9",
 		"postcss-load-config": "^3.1.0",
 		"prettier": "~2.4.1",
 		"prettier-plugin-svelte": "^2.4.0",

yarn.lock

@@ -3287,16 +3287,16 @@ [email protected], ms@^2.1.1:
   resolved "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz"
   integrity sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==
 
-nanocolors@^0.2.2:
-  version "0.2.12"
-  resolved "https://registry.yarnpkg.com/nanocolors/-/nanocolors-0.2.12.tgz#4d05932e70116078673ea4cc6699a1c56cc77777"
-  integrity sha512-SFNdALvzW+rVlzqexid6epYdt8H9Zol7xDoQarioEFcFN0JHo4CYNztAxmtfgGTVRCmFlEOqqhBpoFGKqSAMug==
-
-[email protected], nanoid@^3.1.25:
+[email protected]:
   version "3.1.25"
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.25.tgz#09ca32747c0e543f0e1814b7d3793477f9c8e152"
   integrity sha512-rdwtIXaXCLFAQbnfqDRnI6jaRHp9fTcYBjtFKE8eezcZ7LuLjhUaQGNeMXf1HmRoCH32CLz6XwX0TtxEOS/A3Q==
 
+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"
   resolved "https://registry.npmjs.org/natural-compare/-/natural-compare-1.4.0.tgz"
@@ -3836,13 +3836,13 @@ postcss@^7.0.0, postcss@^7.0.14, postcss@^7.0.32, postcss@^7.0.5, postcss@^7.0.6
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^8.1.6, postcss@^8.2.1, postcss@^8.3.0, postcss@^8.3.8:
-  version "8.3.8"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.8.tgz#9ebe2a127396b4b4570ae9f7770e7fb83db2bac1"
-  integrity sha512-GT5bTjjZnwDifajzczOC+r3FI3Cu+PgPvrsjhQdRqa2kTJ4968/X9CUce9xttIB0xOs5c6xf0TCWZo/y9lF6bA==
+postcss@^8.1.6, postcss@^8.2.1, postcss@^8.3.0, postcss@^8.3.8, 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:
-    nanocolors "^0.2.2"
-    nanoid "^3.1.25"
+    nanoid "^3.1.28"
+    picocolors "^0.2.1"
     source-map-js "^0.6.2"
 
 prelude-ls@^1.2.1: