Update app compat team alias in flicker tests

Flicker test failures are incorrectly being sent to the `Android > Android OS & Apps > Framework (Java + Native) > Window Manager > WM Shell` component

Flag: TEST_ONLY
Bug: 371435086
Test: atest WMShellFlickerTestsAppCompat
Change-Id: I786f19bada69052d1f828a103f289c95d0561f15