Add e2e test of push via HTTP via Git protocol v2
user
```ruby
# frozen_string_literal: true

module QA
  context 'Create' do
    describe 'Push over HTTP using Git protocol version 2', :requires_git_protocol_v2 do
      it 'user pushes to the repository' do
        Runtime::Browser.visit(:gitlab, Page::Main::Login)
        Page::Main::Login.perform(&:sign_in_using_credentials)

        # Create a project to push to
        project = Resource::Project.fabricate! do |project|
          project.name = 'git-protocol-project'
        end

        file_name = 'README.md'
        file_content = 'Test Git protocol v2'
        git_protocol = '2'
        git_protocol_reported = nil

        # Use Git to clone the project, push a file to it, and then check the
        # supported Git protocol
        Git::Repository.perform do |repository|
          username = 'GitLab QA'
          email = 'root@gitlab.com'

          repository.uri = project.repository_http_location.uri
          repository.use_default_credentials
          repository.clone
          repository.configure_identity(username, email)

          git_protocol_reported = repository.push_with_git_protocol(
            git_protocol,
            file_name,
            file_content)
        end

        project.visit!
        Page::Project::Show.perform(&:wait_for_push)

        # Check that the push worked
        expect(page).to have_content(file_name)
        expect(page).to have_content(file_content)

        # And check that the correct Git protocol was used
        expect(git_protocol_reported).to eq(git_protocol)
      end
    end
  end
end
```
assistant