Improvements to the developer tools included in PSS CI/CD

Local linting rules were agreed with the team and the ability to use uncrustify locally is available on ubuntu which is the only platform we now support: https://gitlab.com/ska-telescope/pss/ska-pss-cheetah/-/commit/41f08b9299c2681429f8d58f53e5fabc82c65e1c The CICD for Cheetah now includes unit test: https://gitlab.com/ska-telescope/pss/ska-pss-cheetah/-/pipelines/957505732 We managed to find a work around for the issues with the ITDev tool so we can still use it with the SKAO k8 runners.  We removed centos support as we no longer support Centos anyway. We are also for the moment not including the ability to install a gitlab-runner in our playbooks. The gitlab-runner testing was a little in the spotlight when other people examined this tool and a lot of questions asked about its heavy weight nature. We have not deleted this functionality but are not currently including it. We have a ticket to come back to this. This has freed us up to commit the work from last PI and continue to develop our ansible scripts further.     https://gitlab.com/ska-telescope/pss/ska-pss-ci-systems/-/merge_requests/29/diffs https://gitlab.com/ska-telescope/pss/ska-pss-ci-systems/-/pipelines/970924752