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79fa1a9b - fix packing nvfp/mxfp `max_wokers` & extend xpu ut (#1555)

fix packing nvfp/mxfp `max_wokers` & extend xpu ut (#1555) Signed-off-by: Kaihui-intel <kaihui.tang@intel.com> Signed-off-by: chensuyue <suyue.chen@intel.com>