Disable the TextureStripAtlasManagerColorFilterTest on MoltenVK

AFAICT MoltenVK isn't dropping all its work when we call GrContext::abandonContext. It looks like the bot is dying when trying to submit work when draining its queue.

	unit test  TextureStripAtlasManagerColorFilterTest
    0   dm                                  0x00000001088f041a _ZL13crash_handleri + 202
    1   libsystem_platform.dylib            0x00007fff73cdff5a _sigtramp + 26
    2   CoreFoundation                      0x00007fffa5da0af0 __kCFAllocatorSystemDefault + 0
    3   dm                                  0x0000000109734cd3 _ZN21MVKCmdBufferImageCopy6encodeEP17MVKCommandEncoder + 35
    4   dm                                  0x000000010971879b _ZN17MVKCommandEncoder6encodeEP31MVKQueueCommandBufferSubmission + 107
    5   dm                                  0x000000010971863c _ZN16MVKCommandBuffer7executeEP31MVKQueueCommandBufferSubmissionRK29MVKCommandBufferBatchPosition + 124
    6   dm                                  0x000000010972d29e _ZN31MVKQueueCommandBufferSubmission7executeEv + 94
    7   dm                                  0x000000010972c40c ___ZN8MVKQueue6submitEP18MVKQueueSubmission_block_invoke + 28
    8   libdispatch.dylib                   0x00007fff7399f5fa _dispatch_call_block_and_release + 12
    9   libdispatch.dylib                   0x00007fff73997db8 _dispatch_client_callout + 8
    10  libdispatch.dylib                   0x00007fff739ac217 _dispatch_queue_serial_drain + 635
    11  libdispatch.dylib                   0x00007fff7399f166 _dispatch_queue_invoke + 373
    12  libdispatch.dylib                   0x00007fff739acf0d _dispatch_root_queue_drain_deferred_wlh + 332
    13  libdispatch.dylib                   0x00007fff739b0d21 _dispatch_workloop_worker_thread + 880
    14  libsystem_pthread.dylib             0x00007fff73ce8fd2 _pthread_wqthread + 980
    15  libsystem_pthread.dylib             0x00007fff73ce8be9 start_wqthread + 13

Bug: skia:7959
Change-Id: I175da616b581b745faf614c542a1adb88a72c190
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/206171
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2 files changed