fix(deps): update dependency postcss-custom-media to v9.1.5

Author: renovate[bot]

package-lock.json

@@ -69,7 +69,7 @@
     "jest": "27.5.1",
     "mini-css-extract-plugin": "1.6.2",
     "postcss": "8.4.26",
-    "postcss-custom-media": "9.1.2",
+    "postcss-custom-media": "9.1.5",
     "postcss-loader": "7.3.3",
     "postcss-rtlcss": "4.0.6",
     "react-dev-utils": "12.0.1",