URI for WeatherObserved is deprecated

[michael-mampaey]

The URI for WeatherObserved in the domains Air and Water points to a deprecated Fiware data model. The replacement model (smartdatamodels) doesn't seem to define a new URI though.

URI:
https://uri.fiware.org/ns/data-models#WeatherObserved

Specification:
https://purl.eu/doc/applicationprofile/AirAndWater/Air/kandidaatstandaard/2021-10-01#WeatherObserved
https://purl.eu/doc/applicationprofile/AirAndWater/Water/kandidaatstandaard/2021-10-01#WeatherObserved

Relevant links:
https://fiware-datamodels.readthedocs.io/en/latest/Weather/WeatherObserved/doc/spec/index.html
https://github.com/smart-data-models/dataModel.Weather
https://smartdatamodels.org/context.jsonld