chore(deps): update dependency grpcio to v1.57.0 (#175)

Author: renovate-bot

packages/google-cloud-video-stitcher/samples/snippets/requirements.txt

@@ -1,3 +1,3 @@
 google-api-python-client==2.96.0
-grpcio==1.56.2
+grpcio==1.57.0
 google-cloud-video-stitcher==0.7.3