build(deps): bump brace-expansion from 1.1.18 to 1.1.21 in /docs

Bumps [brace-expansion](https://github.com/juliangruber/brace-expansion) from 1.1.18 to 1.1.21.
- [Release notes](https://github.com/juliangruber/brace-expansion/releases)
- [Commits](juliangruber/brace-expansion@v1.1.18...v1.1.21)

---
updated-dependencies:
- dependency-name: brace-expansion
  dependency-version: 1.1.21
  dependency-type: indirect
...

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

Author: dependabot[bot]

docs/yarn.lock

@@ -3681,9 +3681,9 @@ boxen@^7.0.0:
     wrap-ansi "^8.1.0"
 
 brace-expansion@^1.1.7:
-  version "1.1.18"
-  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.18.tgz#3ce74d89885136be1535341f8c3d4425c29a5cab"
-  integrity sha512-Edep/X9fGqVNmzKBVsDYIOtD+z1tuezV70LBjdCst9Tqu76lsnvRiZ6oTic1n+/BIwX6QDGAO94PN4N2SADvtw==
+  version "1.1.21"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.21.tgz#edf4fab5c64d051aea5a8def49aba1c7522279f3"
+  integrity sha512-9zeA+KLZNNzglF2TPKRQEDyx6Yby7daAkuy8MiPzpXPsYDWi/DRM8jmwUDxokQjYqBpv5DgPiwD4h4ZZSy1Ujw==
   dependencies:
     balanced-match "^1.0.0"
     concat-map "0.0.1"