Start adding issue numbers to tests file

[GiudGiud]

Feature Description

Having the issue number in the tests file helps with maintaining the repo testing. It is a little bit of extra metadata tying the content, with the issues and the PR. It can always be found using git blame then looking at the PR, and finding the issue there. Finding the issue directly is nicer

Design

Use the issues field in tests

Impact

Helps with efficient maintenance operation