Bug 1492316 [wpt PR 13061] - Update wpt metadata, a=testonly

wpt-pr: 13061
wpt-type: metadata

testing/web-platform/meta/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-playbackrate-zero.html.ini

@@ -8,3 +8,15 @@
   [# AUDIT TASK RUNNER FINISHED: 1 out of 1 tasks were failed.]
     expected: FAIL
 
+  [# AUDIT TASK RUNNER FINISHED: 2 out of 2 tasks were failed.]
+    expected: FAIL
+
+  [< [subsample start with playback rate 0\] 2 out of 2 assertions were failed.]
+    expected: FAIL
+
+  [X output[0:27\]: Expected 0 for all values but found 1 unexpected values: \n\tIndex\tActual\n\t[27\]\t5]
+    expected: FAIL
+
+  [X output[28:\]: Expected 5 for all values but found 8164 unexpected values: \n\tIndex\tActual\n\t[0\]\t6\n\t[1\]\t7\n\t[2\]\t8\n\t[3\]\t9\n\t...and 8160 more errors.]
+    expected: FAIL
+

testing/web-platform/meta/webaudio/the-audio-api/the-stereopanner-interface/stereopannernode-panning.html.ini

@@ -0,0 +1,13 @@
+[stereopannernode-panning.html]
+  [< [stereo-test\] 2 out of 4 assertions were failed.]
+    expected: FAIL
+
+  [X Stereo: Right channel error magnitude is not less than or equal to 9.8015e-8. Got 1.0266453775997775e-7.]
+    expected: FAIL
+
+  [X Stereo: Left channel error magnitude is not less than or equal to 9.8015e-8. Got 1.284317301397664e-7.]
+    expected: FAIL
+
+  [# AUDIT TASK RUNNER FINISHED: 1 out of 2 tasks were failed.]
+    expected: FAIL
+