Bump postcss-js from 2.0.2 to 2.0.3

Bumps [postcss-js](https://github.com/postcss/postcss-js) from 2.0.2 to 2.0.3.
- [Release notes](https://github.com/postcss/postcss-js/releases)
- [Changelog](https://github.com/postcss/postcss-js/blob/master/CHANGELOG.md)
- [Commits](postcss/postcss-js@2.0.2...2.0.3)

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

Author: dependabot-preview[bot]

yarn.lock

@@ -3836,12 +3836,12 @@ postcss-functions@^3.0.0:
     postcss-value-parser "^3.3.0"
 
 postcss-js@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/postcss-js/-/postcss-js-2.0.2.tgz#a5e75d3fb9d85b28e1d2bd57956c115665ea8542"
-  integrity sha512-HxXLw1lrczsbVXxyC+t/VIfje9ZeZhkkXE8KpFa3MEKfp2FyHDv29JShYY9eLhYrhLyWWHNIuwkktTfLXu2otw==
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/postcss-js/-/postcss-js-2.0.3.tgz#a96f0f23ff3d08cec7dc5b11bf11c5f8077cdab9"
+  integrity sha512-zS59pAk3deu6dVHyrGqmC3oDXBdNdajk4k1RyxeVXCrcEDBUBHoIhE4QTsmhxgzXxsaqFDAkUZfmMa5f/N/79w==
   dependencies:
     camelcase-css "^2.0.1"
-    postcss "^7.0.17"
+    postcss "^7.0.18"
 
 postcss-nested@^4.1.1:
   version "4.1.2"
@@ -3888,7 +3888,7 @@ postcss@^6.0.9:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
-postcss@^7.0.11, postcss@^7.0.14, postcss@^7.0.17:
+postcss@^7.0.11, postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.18:
   version "7.0.18"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.18.tgz#4b9cda95ae6c069c67a4d933029eddd4838ac233"
   integrity sha512-/7g1QXXgegpF+9GJj4iN7ChGF40sYuGYJ8WZu8DZWnmhQ/G36hfdk3q9LBJmoK+lZ+yzZ5KYpOoxq7LF1BxE8g==