model: support deepseek-ocr (#11891)

Co-authored-by: yhyang201 <47235274+yhyang201@users.noreply.github.com>
Co-authored-by: yhyang201 <yhyang201@gmail.com>
Co-authored-by: Shi Shuai <126407087+shuaills@users.noreply.github.com>
Co-authored-by: Xinyuan Tong <xinyuantong.cs@gmail.com>

python/sglang/test/test_utils.py

@@ -619,7 +619,6 @@ def popen_launch_server(
     start_time = time.perf_counter()
     with requests.Session() as session:
         while time.perf_counter() - start_time < timeout:
-
             return_code = process.poll()
             if return_code is not None:
                 # Server failed to start (non-zero exit code) or crashed