Merge pull request #534 from C-Lodder/dependabot/npm_and_yarn/postcss-mixins-11.0.2

Bump postcss-mixins from 10.0.1 to 11.0.2

Author: C-Lodder

package-lock.json

@@ -27,7 +27,7 @@
     "postcss-discard-comments": "^7.0.2",
     "postcss-each": "^1.1.0",
     "postcss-easy-import": "^4.0.0",
-    "postcss-mixins": "^10.0.1",
+    "postcss-mixins": "^11.0.2",
     "postcss-nested": "^6.2.0",
     "stylelint": "^15.10.3",
     "stylelint-config-standard": "^34.0.0",