Update QA specs for Run Pipeline form

What does this MR do and why?

Updates QA tests to address the following issues:

• #375552 (closed)
• #378249 (closed)
• #378250 (closed)

Screenshots or screen recordings

N/A

How to set up and validate locally

MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.

qa/qa/specs/features/browser_ui/4_verify/ci_variable/custom_variable_spec.rb

@@ -58,9 +58,7 @@ module QA
 
           # Sometimes the variables will not be prefilled because of reactive cache
           # So we revisit the page again
-          project.visit!
-          Page::Project::Menu.perform(&:click_ci_cd_pipelines)
-          Page::Project::Pipeline::Index.perform(&:click_run_pipeline_button)
+          page.refresh
         end
 
         after do