Ignore test base class MaximizeAppWindow

The test base class scenarios/MaximizeAppWindow.kt takes several
constructor parameters so cannot be run as a test by
BlockJUnit4ClassRunner.

Bug: 364595323
Test: atest frameworks/base/libs/WindowManager/Shell/tests/e2e/desktopmode/scenarios/src/com/android/wm/shell/scenarios/*
Flag: com.android.window.flags.enable_desktop_windowing_mode
Change-Id: I7d88709e7fe4eff43b3d6590fb7aab93968a39de