[fix] improve Sglang kt-kernel detect time duration (#1887)

* Increase timeout for Check if --kt-gpu-prefill-token-threshold is in the help output to 90 seconds.

In cloud environments,CUDA initialization and Python module loading can easily exceed 30 seconds.

* Update kt-kernel/python/cli/utils/sglang_checker.py

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Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

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Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

kt-kernel/python/cli/utils/sglang_checker.py

@@ -324,7 +324,7 @@ def check_sglang_kt_kernel_support(use_cache: bool = True, silent: bool = False)
             [sys.executable, "-m", "sglang.launch_server", "--help"],
             capture_output=True,
             text=True,
-            timeout=30,
+            timeout=90,  # Increased for slow CUDA init and module loading in some environments
         )
 
         help_output = result.stdout + result.stderr