Include Gitlab::Shell in Snippets

app/models/concerns/has_repository.rb

@@ -11,6 +11,7 @@ module HasRepository
   extend ActiveSupport::Concern
   include AfterCommitQueue
   include Referable
+  include Gitlab::ShellAdapter
   include Gitlab::Utils::StrongMemoize
 
   delegate :base_dir, :disk_path, to: :storage

app/models/project.rb

@@ -4,7 +4,6 @@ require 'carrierwave/orm/activerecord'
 
 class Project < ApplicationRecord
   include Gitlab::ConfigHelper
-  include Gitlab::ShellAdapter
   include Gitlab::VisibilityLevel
   include AccessRequestable
   include Avatarable

spec/support/shared_examples/models/concerns/has_repository_shared_examples.rb

@@ -167,6 +167,7 @@ RSpec.shared_examples 'model with repository' do
   describe 'Respond to' do
     it { is_expected.to respond_to(:base_dir) }
     it { is_expected.to respond_to(:disk_path) }
+    it { is_expected.to respond_to(:gitlab_shell) }
   end
 
   describe '.pick_repository_storage' do