Bump postcss from 8.5.10 to 8.5.25 in /docs (#1630)

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.10 to 8.5.25.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.10...8.5.25)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.25
  dependency-type: indirect
...

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

Author: dependabot[bot]

docs/yarn.lock

@@ -3291,10 +3291,10 @@ ms@^2.1.3:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
   integrity sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==
 
-nanoid@^3.3.11:
-  version "3.3.11"
-  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.11.tgz#4f4f112cefbe303202f2199838128936266d185b"
-  integrity sha512-N8SpfPUnUp1bK+PMYW8qSWdl9U+wwNWI4QKxOYDy9JAro3WMX7p2OeVRF9v+347pnakNevPmiHhNmZ2HbFA76w==
+nanoid@^3.3.16:
+  version "3.3.17"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.17.tgz#f1c3aa253c52547956a52c50bff754316f61037a"
+  integrity sha512-xQLf0A3HOMlgHq0n247/LRuAOYmB7dXJ/DvAxGvsSBij45XtBSmQycu+F8ODbHwns/XyFZagyL1+J0Offw1E0g==
 
 nlcst-to-string@^2.0.0:
   version "2.0.4"
@@ -3534,11 +3534,11 @@ postcss-load-config@^3.1.4:
     yaml "^1.10.2"
 
 postcss@^8.4.14, postcss@^8.4.18:
-  version "8.5.10"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.10.tgz#8992d8c30acf3f12169e7c09514a12fed7e48356"
-  integrity sha512-pMMHxBOZKFU6HgAZ4eyGnwXF/EvPGGqUr0MnZ5+99485wwW41kW91A4LOGxSHhgugZmSChL5AlElNdwlNgcnLQ==
+  version "8.5.25"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.25.tgz#5012a598eaaa897f21bbe8553be3cb7bd2bd78cb"
+  integrity sha512-DTPx3RWSSnWyzLxQnlH0rJP+EW5ekl16ZU4/psbIhA0e53kJfdgaN5vKM+xP7yJtXVu+nfdVFmlgFDEKAe4Pyw==
   dependencies:
-    nanoid "^3.3.11"
+    nanoid "^3.3.16"
     picocolors "^1.1.1"
     source-map-js "^1.2.1"