<Axis /> labelProps is documented as Partial, but overwrites values

[RyKilleen]

Setting a fill color like so:

<Axis
    labelProps={{
      fill: AXIS_TEXT_COLOR,
    }}
/>

overwrites all other label props.

[RyKilleen]

The issue can be found here, where labelProps is assigned the default text props and then passed wholesale to getLabelTransform:
https://github.com/airbnb/visx/blob/master/packages/visx-axis/src/axis/AxisRenderer.tsx#L92

It is also spread directly on the Text component her:
https://github.com/airbnb/visx/blob/master/packages/visx-axis/src/axis/AxisRenderer.tsx#L98

Ideally defaults would be handled in the same manner as tickLabelProps in the same file:
https://github.com/airbnb/visx/blob/eddcca449a139d651a417c44bf97d5685da53d0b/packages/visx-axis/src/axis/AxisRenderer.tsx#L46C3-L48C5