[Screen share] Add CTS AudioPlaybackCaptureTest to presubmit.

I'm hoping adding it to presubmit means b/357628468 would've been caught before the offending CL was submitted.

Bug: 357628468
Change-Id: Ic01c9a10022ddc257c5de537ee62fec734939412
Flag: NONE test change
Test: Run presubmit, AudioPlaybackCaptureTest is run
diff --git a/services/core/java/com/android/server/audio/TEST_MAPPING b/services/core/java/com/android/server/audio/TEST_MAPPING
index 2cea32a..f050090 100644
--- a/services/core/java/com/android/server/audio/TEST_MAPPING
+++ b/services/core/java/com/android/server/audio/TEST_MAPPING
@@ -10,6 +10,9 @@
                     "include-filter": "android.media.audio.cts.AudioFocusTest"
                 },
                 {
+                    "include-filter": "android.media.audio.cts.AudioPlaybackCaptureTest"
+                },
+                {
                     "include-filter": "android.media.audio.cts.SpatializerTest"
                 }
             ]