chore(deps): update dependency google-cloud-video-stitcher to v0.7.2 (GoogleCloudPlatform#155)

Author: renovate-bot

video/stitcher/requirements.txt

@@ -1,3 +1,3 @@
 google-api-python-client==2.88.0
 grpcio==1.54.2
-google-cloud-video-stitcher==0.7.1
+google-cloud-video-stitcher==0.7.2