Update app.py

app.py

@@ -207,7 +207,7 @@ def process_video(url):
     write_google(google_translate)
     video = VideoFileClip(input_video)
     audio = AudioFileClip(input_audio)
-    video = video.set_audio(audio)
+    video = video.with_audio(audio)
     print(video)
     subtitles = pysrt.open("google_translate.srt", encoding="utf-8")
     output_video_file = input_video_name + '_subtitled' + ".mp4"