Bump ansi-regex from 4.1.0 to 4.1.1 in /site (#709)

Bumps [ansi-regex](https://github.com/chalk/ansi-regex) from 4.1.0 to 4.1.1.
- [Release notes](https://github.com/chalk/ansi-regex/releases)
- [Commits](https://github.com/chalk/ansi-regex/compare/v4.1.0...v4.1.1)

---
updated-dependencies:
- dependency-name: ansi-regex
  dependency-type: indirect
...

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

site/yarn.lock

@@ -67,9 +67,9 @@ ansi-align@^3.0.0:
     string-width "^3.0.0"
 
 ansi-regex@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz#8b9f8f08cf1acb843756a839ca8c7e3168c51997"
-  integrity sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.1.1.tgz#164daac87ab2d6f6db3a29875e2d1766582dabed"
+  integrity sha512-ILlv4k/3f6vfQ4OoP2AGvirOktlQ98ZEL1k9FaQjxa3L1abBgbuTDAdPOpvbGncC0BTVQrl+OM8xZGK6tWXt7g==
 
 ansi-regex@^5.0.0:
   version "5.0.0"