usbutils: migrate to pkgconf

Author: cho-m

Formula/u/usbutils.rb

@@ -26,7 +26,7 @@ class Usbutils < Formula
 
   depends_on "meson" => :build
   depends_on "ninja" => :build
-  depends_on "pkg-config" => :build
+  depends_on "pkgconf" => :build
   depends_on "libusb"
 
   on_linux do