Set userId on test's freeform task.

Fixes the test by setting the userId on the test freeform task; desktop
repositories was comparing the task default of -1 to the provided default of 10, causing the isTaskInFullImmersiveState check to fail in DesktopHeaderManageWindowsMenu#addToContainer.

Bug: 381270716
Test: atest
Flag: EXEMPT bugfix
Change-Id: I81c3878e3ff66348629e6b92fcd938234b40fa1f
1 file changed