Create Workflow::Step::RebuildPackage model

Co-authored-by: Victor Pereira <vpereira@suse.com>

src/api/app/models/workflow/step/rebuild_package.rb

@@ -0,0 +1,36 @@
+class Workflow::Step::RebuildPackage < ::Workflow::Step
+  include Triggerable
+
+  REQUIRED_KEYS = [:project, :package].freeze
+
+  attr_reader :project_name, :package_name
+
+  def call(_options = {})
+    return unless valid?
+
+    # Call Triggerable method to set all the elements needed for rebuilding
+    set_project_name
+    set_package_name
+    set_project
+    set_package
+    set_object_to_authorize
+    set_multibuild_flavor
+
+    Pundit.authorize(@token.user, @token, :rebuild?)
+    rebuild_package
+  end
+
+  def set_project_name
+    @project_name = step_instructions[:project]
+  end
+
+  def set_package_name
+    @package_name = step_instructions[:package]
+  end
+
+  private
+
+  def rebuild_package
+    Backend::Api::Sources::Package.rebuild(project_name, package_name)
+  end
+end