Support arm64 system tests

[LeonarddeR]

Link to issue number:

Fixes #18650

Summary of the issue:

System tests should run on ARM64

Description of user facing changes:

None

Description of developer facing changes:

None

Description of development approach:

Add windows-11-arm as supported runner for tests.

Testing strategy:

Run system tests

Known issues with pull request:

Currently broken due to https://github.com/actions/partner-runner-images/issues/123

Code Review Checklist:

• [x] Documentation:
  • Change log entry
  • User Documentation
  • Developer / Technical Documentation
  • Context sensitive help for GUI changes
• [ ] Testing:
  • Unit tests
  • System (end to end) tests
  • Manual testing
• [x] UX of all users considered:
  • Speech
  • Braille
  • Low Vision
  • Different web browsers
  • Localization in other languages / culture than English
• [x] API is compatible with existing add-ons.
• [x] Security precautions taken.

[LeonarddeR]

Curious enough, some of the Chrome tests seem to pass, it looks like they manage to skip the OBE.

[seanbudd]

I assume this can't be fixed without runner work, so should it be closed?

[LeonarddeR]

There is a documented workaround in https://github.com/actions/partner-runner-images/issues/123#issuecomment-3270241965 . May be we can instruct the robot framework to click through the OBE. I think it would be better if Microsoft/ARM fixed this though.

[seanbudd]

@LeonarddeR - do you plan to investigate the potential workarounds?

[LeonarddeR]

I'm not very comfortable with the robot framework yet. That said, may be AI can assist in writing a workaround that integrates into the testing framework.

[LeonarddeR]

According to https://github.com/actions/partner-runner-images/issues/123#issuecomment-3643337184 the new image version that is being worked on should fix the underlying issue.