Add e2e tests for validating active license details

What does this MR do and why?

• Add a test to check current active license details showing correctly on subscription page

How to set up and validate locally

run

bundle exec bin/qa Test::Instance::All http://0.0.0.0:55010 -- qa/specs/features/ee/browser_ui/fulfillment/license/license_spec.rb

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

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