Wait for pipeline to have expected status in Ops dashboard E2E test

Since `Support::Waiter.wait_until` would raise a `WaitExceededError`
exception if the pipeline status isn't the one we expect after 60
seconds, we don't need an explicit expectation.
Signed-off-by: Rémy Coutable <remy@rymai.me>

qa/qa/specs/features/ee/browser_ui/4_verify/pipeline_status_on_operation_dashboard_spec.rb

@@ -69,7 +69,9 @@ module QA
               next
             end
 
-            expect(operation.pipeline_status(project)).to eq(status)
+            # Since `Support::Waiter.wait_until` would raise a `WaitExceededError` exception if the pipeline status
+            # isn't the one we expect after 60 seconds, we don't need an explicit expectation.
+            Support::Waiter.wait_until { operation.pipeline_status(project) == status }
           end
         end