Quantified units in call signatures should raise Exception if declare_units with dimensions are not supplied

[Zeitsperre]

• xclim version: 0.40.0
• Python version: Any
• Operating System: All

Ran into this issue in #1235

It should not be possible to set a call signature within an indice with Quantified without also specifying the dimensions for it within the declare_units decorator. This causes problems with Indicator parameters and feels like an undocumented "gotcha".

e.g. wo in the following call signature should be [length]:

@declare_units(pr="[precipitation]", evspsblpot="[precipitation]")
def dryness_index(
    pr: xarray.DataArray,
    evspsblpot: xarray.DataArray,
    lat: xarray.DataArray | str | None = None,
    wo: Quantified = "200 mm",
    freq: str = "YS",
) -> xarray.DataArray:
...