Fix the run url in the notification policies

I’ve noticed that `input.run_updated.urls.run` of a notification policy returns a URL where the ID of the run is lower case, resulting in a 404 status code when this url is visited, as the web app expects it to be upper cased. I.e. <URL 1> is returned while it should be

<URL 2> I could fiddle with it myself as a workaround but would prefer not to if at all possible.