Update owners for speech tests.

Change-Id: Ia49526166a35ec05e83f331a226f713595fcfefe
diff --git a/tests/tests/speech/OWNERS b/tests/tests/speech/OWNERS
index c9150c2..e72b790 100644
--- a/tests/tests/speech/OWNERS
+++ b/tests/tests/speech/OWNERS
@@ -1,2 +1,5 @@
 # Bug component: 63521
-rni@google.com
\ No newline at end of file
+volnov@google.com
+eugeniom@google.com
+schfan@google.com
+andreaambu@google.com
\ No newline at end of file