build: improve dependencies #131

Job	Run time
check-paths	8s
pythonpackage	3m 40s
build_extensions (rcs_realsense)	2m 43s
build_cpp_extensions (rcs_robotics_library)	3m 20s
build_extensions (rcs_tacto)	2m 52s
build_extensions (rcs_xarm7)	2m 42s
build_cpp_extensions (rcs_panda)	3m 35s
build_cpp_extensions (rcs_fr3)	3m 36s
build_cpp_extensions (rcs_so101)	3m 35s
build_extensions (rcs_usb_cam)	2m 49s
	29m 0s

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