SNEWPY Warren_2020 model errors on initialization

[sgriswol]

When loading Warren_2020 model in ASTERIA, an error similar to the following is produced. Thanks to @jlazar17 for finding this.
I suspect it is due to a duplicate time entry in the model file, as was the case with SNEWS2/snewpy#210.

~/IceCube/ASTERIA/python/asteria/source.py in __init__(self, model, model_params)
    37         for flavor in Flavor:
    38             t = self.model.time
--> 39             self._interp_lum.update({flavor: PchipInterpolator(t, self.model.luminosity[flavor], extrapolate=False)})
    40             self._interp_meanE.update({flavor: PchipInterpolator(t, self.model.meanE[flavor], extrapolate=False)})
    41             self._interp_pinch.update({flavor: PchipInterpolator(t, self.model.pinch[flavor], extrapolate=False)})

/opt/anaconda3/lib/python3.8/site-packages/scipy/interpolate/_cubic.py in __init__(self, x, y, axis, extrapolate)
    232     """
    233     def __init__(self, x, y, axis=0, extrapolate=None):
--> 234         x, _, y, axis, _ = prepare_input(x, y, axis)
    235         xp = x.reshape((x.shape[0],) + (1,)*(y.ndim-1))
    236         dk = self._find_derivatives(xp, y)

/opt/anaconda3/lib/python3.8/site-packages/scipy/interpolate/_cubic.py in prepare_input(x, y, axis, dydx)
     59     dx = np.diff(x)
     60     if np.any(dx <= 0):
---> 61         raise ValueError("`x` must be strictly increasing sequence.")
     62 
     63     y = np.rollaxis(y, axis)

ValueError: `x` must be strictly increasing sequence.