Bump postcss-load-config from 2.1.0 to 2.1.2 (#14886)

Bumps [postcss-load-config](https://github.com/postcss/postcss-load-config) from 2.1.0 to 2.1.2.
- [Release notes](https://github.com/postcss/postcss-load-config/releases)
- [Changelog](https://github.com/postcss/postcss-load-config/blob/master/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss-load-config/compare/v2.1.0...v2.1.2)

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

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

yarn.lock

@@ -7965,9 +7965,9 @@ postcss-discard-overridden@^4.0.1:
     postcss "^7.0.0"
 
 postcss-load-config@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/postcss-load-config/-/postcss-load-config-2.1.0.tgz#c84d692b7bb7b41ddced94ee62e8ab31b417b003"
-  integrity sha512-4pV3JJVPLd5+RueiVVB+gFOAa7GWc25XQcMp86Zexzke69mKf6Nx9LRcQywdz7yZI9n1udOxmLuAwTBypypF8Q==
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/postcss-load-config/-/postcss-load-config-2.1.2.tgz#c5ea504f2c4aef33c7359a34de3573772ad7502a"
+  integrity sha512-/rDeGV6vMUo3mwJZmeHfEDvwnTKKqQ0S7OHUi/kJvvtx3aWtyWG2/0ZWnzCt2keEclwN6Tf0DST2v9kITdOKYw==
   dependencies:
     cosmiconfig "^5.0.0"
     import-cwd "^2.0.0"