Use numpy.float64 instead of deprecated numpy.float

[tjlcbakx]

File "", line 1, in
File "/Users/tombakx/opt/anaconda3/lib/python3.9/site-packages/deshima_sensitivity/plotting.py", line 66, in MDLF_simple
D2goal = spectrometer_sensitivity(**D2goal_input)
File "/Users/tombakx/opt/anaconda3/lib/python3.9/site-packages/deshima_sensitivity/simulator.py", line 359, in spectrometer_sensitivity
eta_atm = eta_atm_func(F=F_int, pwv=pwv, EL=EL)
File "/Users/tombakx/opt/anaconda3/lib/python3.9/site-packages/deshima_sensitivity/atmosphere.py", line 61, in eta_atm_func
eta_atm_func_zenith = eta_atm_interp(eta_atm_df)
File "/Users/tombakx/opt/anaconda3/lib/python3.9/site-packages/deshima_sensitivity/atmosphere.py", line 122, in eta_atm_interp
x = np.array(list(eta_atm_dataframe)[1:]).astype(np.float)
File "/Users/tombakx/opt/anaconda3/lib/python3.9/site-packages/numpy/init.py", line 324, in getattr
raise AttributeError(former_attrs[attr])
AttributeError: module 'numpy' has no attribute 'float'.
np.float was a deprecated alias for the builtin float. To avoid this error in existing code, use float by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use np.float64 here.
The aliases was originally deprecated in NumPy 1.20; for more details and guidance see the original release note at:
https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations

[astropenguin]

Thank you @tjlcbakx for reporting this! I will fix this in deshima-sensitivity v0.4.2.