Debug EE E2E test failures - absent Ultimate license

What does this MR do and why?

This MR adds dedicated and cached instances methods for License.current only. Memoized License.current breaks E2E tests, and it does not fit the current implementation.

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.

Related to #375886 (closed)