Bump postcss from 8.4.40 to 8.4.45

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.40 to 8.4.45.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.40...8.4.45)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

yarn.lock

@@ -4666,9 +4666,9 @@ postcss-value-parser@^4.1.0, postcss-value-parser@^4.2.0:
   integrity sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==
 
 postcss@8.4, postcss@^8.2.14, postcss@^8.2.15, postcss@^8.4.40:
-  version "8.4.40"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.40.tgz#eb81f2a4dd7668ed869a6db25999e02e9ad909d8"
-  integrity sha512-YF2kKIUzAofPMpfH6hOi2cGnv/HrUlfucspc7pDyvv7kGdqXrfj8SCl/t8owkEgKEuu8ZcRjSOxFxVLqwChZ2Q==
+  version "8.4.45"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.45.tgz#538d13d89a16ef71edbf75d895284ae06b79e603"
+  integrity sha512-7KTLTdzdZZYscUc65XmjFiB73vBhBfbPztCYdUNvlaso9PrzjzcmjqBPR0lNGkcVlcO4BjiO5rK/qNz+XAen1Q==
   dependencies:
     nanoid "^3.3.7"
     picocolors "^1.0.1"