uwsgi: migrate to pkgconf

Author: cho-m

Formula/u/uwsgi.rb

@@ -15,7 +15,7 @@ class Uwsgi < Formula
     sha256 x86_64_linux:  "837e3580174d833939e92f51d97664d092d0cd4e4f1ad167429f743aaeed865b"
   end
 
-  depends_on "pkg-config" => :build
+  depends_on "pkgconf" => :build
   depends_on "openssl@3"
   depends_on "pcre2"
   depends_on "[email protected]"