refactor: replace regex with jq filters

porcelain.jq

@@ -2,7 +2,9 @@ map_values(map_values({
   hex: .hex | ltrimstr("#"),
   rgb: .raw | split(", ") | map(tonumber),
   hsl: .hsl
-    | capture("hsl\\((?<h>\\d+),\\s*(?<s>\\d+)%,\\s*(?<l>\\d+)%\\)")
-    | map(tonumber)
+    | ltrimstr("hsl(")
+    | rtrimstr(")")
+    | split(", ")
+    | map(rtrimstr("%") | tonumber)
     | [ .[0], .[1] / 100, .[2] / 100 ]
 }))