test(render_points): regenerate datashader baselines for resolved-norm fill

render_points now routes continuous color through _resolve_continuous_norm for
the datashader backend too (norm passed at render.py:1459), so the points use
the properly scaled norm (degenerate [0,1] reset, LogNorm/PowerNorm preserved,
data-range vmin/vmax) instead of an unscaled autoscaled norm. This shifts the
datashader continuous-color/reduction/NaN baselines; regenerated from CI.

Author: timtreis