docs(regen): updated javadocs from protoc update

proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/AnnotateVideoProgress.java

@@ -43,6 +43,12 @@ private AnnotateVideoProgress() {
     annotationProgress_ = java.util.Collections.emptyList();
   }
 
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new AnnotateVideoProgress();
+  }
+
   @java.lang.Override
   public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;