build(deps): bump css-tree from 2.1.0 to 2.2.1 (#1568)

Bumps [css-tree](https://github.com/csstree/csstree) from 2.1.0 to 2.2.1.
- [Release notes](https://github.com/csstree/csstree/releases)
- [Changelog](https://github.com/csstree/csstree/blob/master/CHANGELOG.md)
- [Commits](csstree/csstree@v2.1.0...v2.2.1)

---
updated-dependencies:
- dependency-name: css-tree
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

yarn.lock

@@ -2184,11 +2184,11 @@ crypto-random-string@^4.0.0:
     type-fest "^1.0.1"
 
 css-tree@^2.0.4:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-2.1.0.tgz#170e27ccf94e7c5facb183765c25898be843d1d2"
-  integrity sha512-PcysZRzToBbrpoUrZ9qfblRIRf8zbEAkU0AIpQFtgkFK0vSbzOmBCvdSAx2Zg7Xx5wiYJKUKk0NMP7kxevie/A==
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-2.2.1.tgz#36115d382d60afd271e377f9c5f67d02bd48c032"
+  integrity sha512-OA0mILzGc1kCOCSJerOeqDxDQ4HOh+G8NbOJFOTgOCzpw7fCBubk0fEyxp8AgOL/jvLgYA/uV0cMbe43ElF1JA==
   dependencies:
-    mdn-data "2.0.27"
+    mdn-data "2.0.28"
     source-map-js "^1.0.1"
 
 cssom@^0.5.0:
@@ -4768,10 +4768,10 @@ mdast-util-to-string@^3.1.0:
   resolved "https://registry.yarnpkg.com/mdast-util-to-string/-/mdast-util-to-string-3.1.0.tgz#56c506d065fbf769515235e577b5a261552d56e9"
   integrity sha512-n4Vypz/DZgwo0iMHLQL49dJzlp7YtAJP+N07MZHpjPf/5XJuHUWstviF4Mn2jEiR/GNmtnRRqnwsXExk3igfFA==
 
-mdn-data@2.0.27:
-  version "2.0.27"
-  resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-2.0.27.tgz#1710baa7b0db8176d3b3d565ccb7915fc69525ab"
-  integrity sha512-kwqO0I0jtWr25KcfLm9pia8vLZ8qoAKhWZuZMbneJq3jjBD3gl5nZs8l8Tu3ZBlBAHVQtDur9rdDGyvtfVraHQ==
+mdn-data@2.0.28:
+  version "2.0.28"
+  resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-2.0.28.tgz#5ec48e7bef120654539069e1ae4ddc81ca490eba"
+  integrity sha512-aylIc7Z9y4yzHYAJNuESG3hfhC+0Ibp/MAMiaOZgNv4pmEdFyfZhhhny4MNiAfWdBQ1RQ2mfDWmM1x8SvGyp8g==
 
 mdurl@^1.0.1:
   version "1.0.1"