Follow-up: Implement end-to-end tests for License Policy Tab

Since the Settings -> CI/CD -> License Compliance UI has been removed in !31553 (merged)

We also removed the automation that is no longer needed. We should re-implement that automation for the new UX workflow. We can now access the removed UI as the Policy tab in License compliance.

The following UI replaces what was relocated:

The license_compliance_spec has been removed as per e04b74bd

Issues in scope for testing:

• Include airgap testing for npm Javascript #212921 (closed)
• Licenses from custom repo #211688 (closed)
• Anchors as per #199066 (closed)
• Licence Check approval rule #32149 (closed)
• Note - Settings -> CI/CD - License Compliance to be removed #212477 (closed)
• Conan/offline #212919 (closed)
• Bower/airgapped #212923 (closed)
• Use gl-license-scanning-report #213577 (closed)
• UI icon name #213789 (closed)
• Disable using vendored dependencies to detect licenses in golang projects #219485 (closed)
• Drop support for license-management artifacts #218009 (closed) / #216995 (closed)
• License scanning report parsing failed #215226 (closed)
• License compliance badge displays wrong number #214766 (closed)