build(deps-dev): remove dependency postcss-color-function because it is now defunct

Author: iOvergaard

package-lock.json

@@ -109,7 +109,6 @@
     "postcss": "8.5.3",
     "postcss-advanced-variables": "5.0.0",
     "postcss-cli": "11.0.1",
-    "postcss-color-function": "4.1.0",
     "postcss-custom-properties": "14.0.4",
     "postcss-jsx": "0.36.4",
     "postcss-load-config": "6.0.1",