Allow customizing properties on the system package install resource v…

…ia a block.

This is mostly being added to allow disabling dev_package for a provider.

lib/poise_languages/system/mixin.rb

@@ -27,7 +27,7 @@ module Mixin
       #
       # @api public
       # @return [PoiseLanguages::System::Resource]
-      def install_system_packages
+      def install_system_packages(&block)
         dev_package_overrides = system_dev_package_overrides
         poise_languages_system system_package_name do
           # Otherwise use the default install action.
@@ -38,16 +38,18 @@ def install_system_packages
           dev_package_overrides dev_package_overrides
           package_version options['package_version'] if options['package_version']
           version options['version']
+          instance_exec(&block) if block
         end
       end
 
       # Uninstall a language using system packages.
       #
       # @api public
       # @return [PoiseLanguages::System::Resource]
-      def uninstall_system_packages
+      def uninstall_system_packages(&block)
         install_system_packages.tap do |r|
           r.action(:uninstall)
+          r.instance_exec(&block) if block
         end
       end