chore(deps): update dependency google-cloud-media-translation to v0.9.4 (#237)

Author: renovate-bot

media-translation/snippets/requirements.txt

@@ -1,3 +1,3 @@
-google-cloud-media-translation==0.9.3
+google-cloud-media-translation==0.9.4
 pyaudio==0.2.12
 six==1.16.0