esphome: add python-setuptools depedency

When compiling a configuration which uses esp-idf, the `pkg_resources`
module is missing. Adding the `python-setuptools` dependency will fix
this issue

Formula/e/esphome.rb

@@ -20,6 +20,7 @@ class Esphome < Formula
   depends_on "cryptography"
   depends_on "libmagic"
   depends_on "libyaml"
+  depends_on "python-setuptools"
   depends_on "[email protected]"
 
   uses_from_macos "libffi"