Skip unstable ListView UI tests

[LeafShi1]

Related #11328, #13291

Adding this test to the new synchronized collection does not resolve the instability

Proposed changes

• Skip the following unstable ListView tests

1. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_FragmentNavigate_ReturnsNullAsync(columnCount: 1, subItemsCount: 0, width: 150, height: 150, direction: 3)
2. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_FragmentNavigate_WorksExpectedAsync(columnCount: 2, subItemsCount: 2, width: 150, height: 150, itemIndex: 0, subItemIndex: 1, direction: 3)
3. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_GetChild_ReturnsExpected_For_BigSizeAsync
4. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_GetChild_ReturnsExpectedAsync
5. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_GetChild_ReturnsNullAsync(columnCount: 4, subItemsCount: 0, width: 150, height: 150)
6. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_GetChildAsync(columnCount: 4, subItemsCount: 1)
7. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_GetChildCount_ReturnsExpectedAsync(columnCount: 4, subItemsCount: 3, width: 150, height: 150, expected: 3)
8. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_GetChildIndex_ForDifferentSize_ReturnsExpectedAsync(columnCount: 4, subItemsCount: 1, width: 150, height: 150, expected1: -1, expected2: 1)
9. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_GetChildIndex_ReturnsExpected_For_BigSizeAsync
10. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_GetChildIndex_ReturnsExpected_SubItemsMoreThanColumnsAsync
11. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_GetChildIndex_ReturnsExpectedAsync
12. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_SubItem_FragmentNavigate_Child_ReturnsNullAsync
13. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_SubItem_FragmentNavigate_NextSibling_ReturnsExpectedAsync
14. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_SubItem_FragmentNavigate_Sibling_ReturnsNull_For_SmallSizeAsync
15. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_SubItem_FragmentNavigate_Sibling_ReturnsNullAsync(columnCount: 4, subItemsCount: 1)
16. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_SubItem_HitTest_ReturnExpectedAsync
17. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_ColumnProperty_ReturnsMinusOneAsync
18. System.Windows.Forms.UITests.ListViewTests.ListView_Tile_GetChildIndex_ReturnsMinusOne_For_Single_ColumnAsync
19. ListView_Group_NavigateKeyboard_SucceedsAsync

Microsoft Reviewers: Open in CodeFlow

[Copilot]

Pull Request Overview

This PR skips a set of unstable ListView UI tests to improve overall test reliability.

• Skips tests flagged as flaky due to known issues (Unstable unit test: System.Windows.Forms.UITests.ListViewTests.ListView_Group_NavigateKeyboard_SucceedsAsync #11328, Unstable unit test: System.Windows.Forms.UITests.ListViewTests.ListView_Tile_... #13291, Unstable unit test: System.Windows.Forms.UITests.ListViewTests.ListView_Click_On_Second_Column_Does_Not_Alter_CheckBoxesAsync #13288).
• Adds [ActiveIssue] and [SkipOnArchitecture] attributes to the affected test methods.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.59165%. Comparing base (c56a0f6) to head (e417e31).
Report is 35 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main      #13514         +/-   ##
===================================================
- Coverage   76.59837%   76.59165%   -0.00673%     
===================================================
  Files           3230        3230                 
  Lines         639165      639148         -17     
  Branches       47297       47295          -2     
===================================================
- Hits          489590      489534         -56     
- Misses        145993      146080         +87     
+ Partials        3582        3534         -48     

Flag	Coverage Δ
Debug	76.59165% <ø> (-0.00673%)	⬇️
integration	18.53910% <ø> (-0.24522%)	⬇️
production	50.98869% <ø> (-0.01652%)	⬇️
test	97.40411% <ø> (ø)
unit	48.40487% <ø> (-0.00272%)	⬇️

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[KlausLoeffelmann]

I agree that they block us more right now and they are not at all helping us. And we do not have the person power to fix them timely, so let's skip them for the time being.