Update all github actions pipelines to latest versions and introduce dependabot

[butler54]

Issue description / feature objectives

Github actions has been iterating rapidly. CICD tools are high risk from a security perspective. Move to the latest versions of all actions steps if possible and introduce dependabot to ensure versions are updated.

Historically dependabot provided minimal value as it did not index setup.cfg files. This appears to be closed.

Caveats / Assumptions

No breaking changes have been introduced that have adverse affects outside of the github actions pipelines themselves (e.g. on the managed code)>

Completion Criteria