Environment Canada domain has changed, breaking the Weather Widget

It appears that Environment Canada has changed the domain for their weather data from dd.weatheroffice.ec.gc.ca to dd.weather.gc.ca. The data layout hasn't changed, so a simple change of the base URL fixes the issue.

I have a patch and will attempt to open a merge request.

I couldn't find any existing report on bugs.kde.org and wasn't sure if I should submit one since I already have a patch.