fix(deps): update dependency postcss-custom-media to v10.0.4

Author: renovate[bot]

package-lock.json

@@ -66,7 +66,7 @@
     "jest": "26.6.3",
     "mini-css-extract-plugin": "1.6.2",
     "postcss": "8.4.38",
-    "postcss-custom-media": "10.0.2",
+    "postcss-custom-media": "10.0.4",
     "postcss-loader": "7.3.4",
     "postcss-rtlcss": "5.1.0",
     "react-dev-utils": "12.0.1",