fix robotiq hardware not found #242

Job	Run time
check-paths	10s
pythonpackage	3m 8s
build_cpp_extensions (rcs_fr3)	3m 38s
build_cpp_extensions (rcs_robotics_library)	3m 10s
build_extensions (rcs_tacto)	2m 26s
build_extensions (rcs_usb_cam)	2m 9s
build_extensions (rcs_realsense)	2m 1s
build_cpp_extensions (rcs_panda)	2m 58s
build_extensions (rcs_xarm7)	2m 9s
build_cpp_extensions (rcs_so101)	4m 22s
build_extensions (rcs_robotiq2f85)	2m 5s
	28m 16s

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