Add in later versions of Django (!21) · Merge requests · Information Services / DevOps / Django Libraries / DevOps Common Utils

This MR add in Django LTS 3.2 and the current LTS version 4.2.

Re-factor the testing to make use of GitLab's parallel support so that each test is run in its own job specified in a matrix.

Some small fixes required to placate later Djangos were added.

Add in later versions of Django