Since we'd also like to use this Django app for error taxonomy upload
(and potentially, any other analytics-related things other than build
timings in the future), I refactored this docker image by
- Renaming it to have a more generic name (`ci-analytics`)
- Removing the invocation of the build timing upload script from the
Docker file, and instead specifying it in the job template.

I kept the old one there for now instead of deleting it. Once we
confirm that the new analytics DB-based workflow works, I'll remove it.

Both of their job-template.yaml files got updated, so we need to bump
these as well.

Failed jobs don't have a `Job` record saved.