fred: use PyPI DSL

Signed-off-by: botantony <[email protected]>

Author: botantony

Formula/f/fred.rb

@@ -16,6 +16,8 @@ class Fred < Formula
   depends_on "certifi"
   depends_on "[email protected]"
 
+  pypi_packages exclude_packages: "certifi"
+
   resource "charset-normalizer" do
     url "https://files.pythonhosted.org/packages/83/2d/5fd176ceb9b2fc619e63405525573493ca23441330fcdaee6bef9460e924/charset_normalizer-3.4.3.tar.gz"
     sha256 "6fce4b8500244f6fcb71465d4a4930d132ba9ab8e71a7859e6a5d59851068d14"