chore: update Java and Python dependencies (#261)

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 408420890

Source-Link: googleapis/googleapis@2921f9f

Source-Link: https://github.com/googleapis/googleapis-gen/commit/6598ca8cbbf5226733a099c4506518a5af6ff74c
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiNjU5OGNhOGNiYmY1MjI2NzMzYTA5OWM0NTA2NTE4YTVhZjZmZjc0YyJ9

Author: gcf-owl-bot[bot]

grpc-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/TranscoderServiceGrpc.java

@@ -32,6 +32,7 @@
 @javax.annotation.Generated(
     value = "by gRPC proto compiler",
     comments = "Source: google/cloud/video/transcoder/v1/services.proto")
+@io.grpc.stub.annotations.GrpcGenerated
 public final class TranscoderServiceGrpc {
 
   private TranscoderServiceGrpc() {}

grpc-google-cloud-video-transcoder-v1beta1/src/main/java/com/google/cloud/video/transcoder/v1beta1/TranscoderServiceGrpc.java

@@ -32,6 +32,7 @@
 @javax.annotation.Generated(
     value = "by gRPC proto compiler",
     comments = "Source: google/cloud/video/transcoder/v1beta1/services.proto")
+@io.grpc.stub.annotations.GrpcGenerated
 @java.lang.Deprecated
 public final class TranscoderServiceGrpc {