Foss: uninitialized constant API::Analytics in rspec frontend_fixtures

Job #951830438 failed for gitlab-foss@6e734c80:

FOSS_ONLY=1 bundle exec rspec spec/frontend/fixtures/project_analytics.rb

An error occurred while loading ./spec/frontend/fixtures/project_analytics.rb.
Failure/Error:
    describe API::Analytics::ProjectDeploymentFrequency, type: :request do
      before(:all) do
        clean_frontend_fixtures('api/project_analytics/')
      end
  
      let(:shared_params) { { environment: environment.name, interval: 'daily' } }
  
      def make_request(additional_query_params:)
        params = shared_params.merge(additional_query_params)
        get api("/projects/#{project.id}/analytics/deployment_frequency?#{params.to_query}", reporter)
NameError:
  uninitialized constant API::Analytics
# ./spec/frontend/fixtures/project_analytics.rb:42:in `block in <top (required)>'
# ./spec/frontend/fixtures/project_analytics.rb:5:in `<top (required)>'