feat(salt@3006): Try using salt patch from lib

Casks/salt@3006.rb

@@ -1,39 +1,3 @@
-module Utils
-  extend SystemCommand::Mixin
-
-  def self.patch_plist(daemon)
-    plist_file = "/Library/LaunchDaemons/com.saltstack.salt.#{daemon}.plist"
-    xml, _, status = system_command "plutil",
-                                    args: ["-convert", "xml1", "-o", "-", "--", plist_file],
-                                    sudo: true
-
-    return unless status.success?
-
-    xml = Plist.parse_xml(xml)
-
-    xml["EnvironmentVariables"] = {} unless xml.key?("EnvironmentVariables")
-    xml["EnvironmentVariables"]["HOMEBREW_PREFIX"] = HOMEBREW_PREFIX.to_s
-    xml["EnvironmentVariables"]["HOME"] ||= "/var/root"
-
-    path = xml["EnvironmentVariables"]["PATH"] || "/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
-    path = "#{HOMEBREW_PREFIX}/bin:#{path}" unless path.split(":").include?("#{HOMEBREW_PREFIX}/bin")
-    xml["EnvironmentVariables"]["PATH"] = path
-
-    random_str = (0...8).map { rand(65..90).chr }.join
-    new_plist_file = "/tmp/#{random_str}.#{File.basename(plist_file)}"
-    File.write(new_plist_file, xml.to_plist)
-    system_command "plutil",
-                   args: ["-lint", new_plist_file]
-
-    system_command "mv",
-                   args: [new_plist_file, plist_file],
-                   sudo: true
-    system_command "chown",
-                   args: ["root:wheel", plist_file],
-                   sudo: true
-  end
-end
-
 cask "salt@3006" do
   arch arm: "arm64", intel: "x86_64"
 
@@ -57,8 +21,8 @@ def self.patch_plist(daemon)
   pkg "salt-#{version}-py3-#{arch}.pkg"
 
   postflight do
-    require_relative "#{`brew --repository cdalvaro/tap`.lines.first.chomp}/lib/patches/salt"
-    %w[api master minion syndic].each { |daemon| Utils.patch_plist(daemon) }
+    require_relative "../lib/patches/salt"
+    %w[api master minion syndic].each { |daemon| Patches::Salt.patch_plist(daemon) }
   end
 
   uninstall launchctl: [