Update app.py

app.py

@@ -421,5 +421,5 @@ async def retry_upload(upload_url: str, file_content: bytes, content_type: str,
             print(f'Upload failed, retrying in {delay}s...')
             time.sleep(delay)
             delay *= 2  # Exponential backoff
-    print('Upload failed after all retry attempts')
+    print('Upload failed after all retry attempt')
     return False