Add http status cop in project controller specs

.rubocop.yml

...c/controllers/projects/approver_groups_controller_spec.rb

ee/spec/controllers/projects/approvers_controller_spec.rb

ee/spec/controllers/projects/audit_events_controller_spec.rb

ee/spec/controllers/projects/boards_controller_spec.rb

ee/spec/controllers/projects/dependencies_controller_spec.rb

ee/spec/controllers/projects/deploy_keys_controller_spec.rb

ee/spec/controllers/projects/environments_controller_spec.rb

...rollers/projects/feature_flags_clients_controller_spec.rb

...pec/controllers/projects/feature_flags_controller_spec.rb

ee/spec/controllers/projects/issue_links_controller_spec.rb

ee/spec/controllers/projects/issues_controller_spec.rb

ee/spec/controllers/projects/licenses_controller_spec.rb

...ec/controllers/projects/merge_requests_controller_spec.rb

ee/spec/controllers/projects/mirrors_controller_spec.rb

ee/spec/controllers/projects/path_locks_controller_spec.rb

ee/spec/controllers/projects/pipelines_controller_spec.rb

...ollers/projects/protected_environments_controller_spec.rb

ee/spec/controllers/projects/push_rules_controller_spec.rb

...controllers/projects/threat_monitoring_controller_spec.rb