Bump postcss from 8.3.6 to 8.3.8 (#14824)

Bumps [postcss](https://github.com/postcss/postcss) from 8.3.6 to 8.3.8.
- [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/8.3.6...8.3.8)

---
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

@@ -159,7 +159,7 @@
     "intersection-observer": "^0.12.0",
     "linkstate": "^2.0.1",
     "lodash.debounce": "4.0.8",
-    "postcss": "^8.3.6",
+    "postcss": "^8.3.8",
     "postcss-cli": "^8.3.1",
     "postcss-cssnext": "^3.1.0",
     "postcss-smart-import": "^0.7.6",

yarn.lock

@@ -10418,10 +10418,15 @@ nan@^2.12.1, nan@^2.14.0:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.15.0.tgz#3f34a473ff18e15c1b5626b62903b5ad6e665fee"
   integrity sha512-8ZtvEnA2c5aYCZYd1cvgdnU6cqwixRoYg70xPLWUws5ORTa/lnw+u4amixRS/Ac5U5mQVgp9pnlSUnbNWFaWZQ==
 
-nanoid@^3.1.23:
-  version "3.1.25"
-  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.25.tgz#09ca32747c0e543f0e1814b7d3793477f9c8e152"
-  integrity sha512-rdwtIXaXCLFAQbnfqDRnI6jaRHp9fTcYBjtFKE8eezcZ7LuLjhUaQGNeMXf1HmRoCH32CLz6XwX0TtxEOS/A3Q==
+nanocolors@^0.2.2:
+  version "0.2.11"
+  resolved "https://registry.yarnpkg.com/nanocolors/-/nanocolors-0.2.11.tgz#f2573e6872f1b70067423fc68bbc9d0de2f3bbee"
+  integrity sha512-83ttyvfJj66dKMadWfBkEUOEDFfRc8FpzTJvh1MySR/pzWFmFikTQZGOV6kHZRz7yR/heiQ1y/MHBBN5P/e7WQ==
+
+nanoid@^3.1.25:
+  version "3.1.28"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.28.tgz#3c01bac14cb6c5680569014cc65a2f26424c6bd4"
+  integrity sha512-gSu9VZ2HtmoKYe/lmyPFES5nknFrHa+/DT9muUFWFMi6Jh9E1I7bkvlQ8xxf1Kos9pi9o8lBnIOkatMhKX/YUw==
 
 nanomatch@^1.2.9:
   version "1.2.13"
@@ -12335,13 +12340,13 @@ postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.2
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^8.2.15, 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@^8.2.15, 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==
   dependencies:
-    colorette "^1.2.2"
-    nanoid "^3.1.23"
+    nanocolors "^0.2.2"
+    nanoid "^3.1.25"
     source-map-js "^0.6.2"
 
 postscribe@^2.0.8: