[xharness] Bump timeout for .NET tests again.

[rolfbjarne]

We keep adding more and more test cases...

[mandel-macaque]

yikes...

[vs-mobiletools-engineering-service2]

❌ [PR Build] Tests failed on Build ❌

Tests failed on Build.

• Azure DevOps
• Html Report (VSDrops)

API diff

✅ API Diff from stable

View API diff

• iOS vsdrops gist
• macOS vsdrops gist
• macCat vsdrops gist
• macCatiOS gist
• tvOS vsdrops gist
• watchOS vsdrops gist

API & Generator diff

✅ API Diff (from PR only) (no change)
✅ Generator Diff (only version changes)

GitHub pages

Results can be found in the following github pages (it might take some time to publish):

• Test results
• API diff
• API & Generator diff

Test results

3 tests failed, 144 tests passed.

Failed tests

• link all/Mac Catalyst/Debug [dotnet]: TimedOut (Execution timed out after 1200 seconds.
  No test log file was produced)
• link sdk/Mac [dotnet]/Debug [dotnet]: BuildFailure
• link sdk/Mac [dotnet]/Release [dotnet]: BuildFailure

Pipeline on Agent XAMBOT-1100.BigSur'
Merge 1c589e1 into ef61ab5

[rolfbjarne]

Test failures are unrelated:

• link all/Mac Catalyst/Debug [dotnet]: https://github.com/xamarin/maccore/issues/2414
• link sdk/Mac [dotnet]/Debug [dotnet]: Fixed in [tests] Fix the build for link sdk tests on .NET/macOS. #12475.
• link sdk/Mac [dotnet]/Release [dotnet]: Fixed in [tests] Fix the build for link sdk tests on .NET/macOS. #12475.