Reduce the load on met.no servers, yr.no sensor (#12435)

* Spread the load more for the yr.no sensor

* Spread the load more for the yr.no sensor

* Spread the load more for the yr.no sensor

* Spread the load more for the yr.no sensor

* Spread the load more for the yr.no sensor

* Spread the load more for the yr.no sensor

* Spread the load more for the yr.no sensor

* Spread the load more for the yr.no sensor

* Spread the load more for the yr.no sensor

* fix comment

* Spread the load more for the yr.no sensor

* Spread the load more for the yr.no sensor

* Spread the load more for the yr.no sensor

* Update yr.py