Add test file with metadata track

Mp4Muxer supports adding Metadata track.
Added test file to cover this scenario.

PiperOrigin-RevId: 531496409
(cherry picked from commit 1bcd0cefd6ea8dd208f0829f810824fd0f9a97f1)

library/muxer/src/androidTest/java/androidx/media3/muxer/Mp4MuxerEndToEndTest.java

@@ -45,11 +45,12 @@ import org.junit.runners.Parameterized.Parameters;
 public class Mp4MuxerEndToEndTest {
   private static final String H264_MP4 = "sample.mp4";
   private static final String H265_HDR10_MP4 = "hdr10-720p.mp4";
+  private static final String H265_WITH_METADATA_TRACK_MP4 = "h265_with_metadata_track.mp4";
   private static final String AV1_MP4 = "sample_av1.mp4";
 
   @Parameters(name = "{0}")
   public static ImmutableList<String> mediaSamples() {
-    return ImmutableList.of(H264_MP4, H265_HDR10_MP4, AV1_MP4);
+    return ImmutableList.of(H264_MP4, H265_HDR10_MP4, H265_WITH_METADATA_TRACK_MP4, AV1_MP4);
   }
 
   @Parameter public String inputFile;

testdata/src/test/assets/muxerdumps/h265_with_metadata_track.mp4.dump

+seekMap:
+  isSeekable = true
+  duration = 66700
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(33350) = [[timeUs=0, position=44]]
+  getPosition(66700) = [[timeUs=0, position=44]]
+numberOfTracks = 3
+track 0:
+  total output bytes = 387
+  sample count = 3
+  format 0:
+    id = 1
+    sampleMimeType = application/meta
+    maxInputSize = 161
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 131, hash 37A90BF3
+  sample 1:
+    time = 33344
+    flags = 1
+    data = length 125, hash 1F92C1BF
+  sample 2:
+    time = 66700
+    flags = 536870913
+    data = length 131, hash 47B06CA4
+track 1:
+  total output bytes = 1726
+  sample count = 3
+  format 0:
+    averageBitrate = 192000
+    peakBitrate = 192000
+    id = 2
+    sampleMimeType = audio/mp4a-latm
+    codecs = mp4a.40.2
+    maxInputSize = 627
+    channelCount = 2
+    sampleRate = 48000
+    language = ```
+    initializationData:
+      data = length 2, hash 560
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 597, hash 36BCB84D
+  sample 1:
+    time = 38041
+    flags = 1
+    data = length 571, hash FD73DCB0
+  sample 2:
+    time = 59375
+    flags = 536870913
+    data = length 558, hash 6A62DD7F
+track 2:
+  total output bytes = 678996
+  sample count = 3
+  format 0:
+    id = 3
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L153.B0
+    maxInputSize = 420494
+    width = 1920
+    height = 1080
+    frameRate = 44.977512
+    colorInfo:
+      colorSpace = 2
+      colorRange = 1
+      colorTransfer = 3
+      hdrStaticInfo = length 0, hash 0
+    initializationData:
+      data = length 85, hash 6F3CAA16
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 420464, hash 9C6E9B09
+  sample 1:
+    time = 33344
+    flags = 0
+    data = length 131591, hash A1895540
+  sample 2:
+    time = 66700
+    flags = 536870912
+    data = length 126941, hash 7B26BBA6
+tracksEnded = true