This should reduce the size of the CodeQL bundle by only including the
platform specific CodeQL CLI and libraries, rather than the full set
of CodeQL CLI and libraries for all platforms.
* [Ubuntu] Update default CodeQL major version to v3
* [Ubuntu] use the latest CodeQL Action major version
Instead of hardcoding it!
* Add missing `v` to CodeQL bundle URL
* [ubuntu] Rename build scripts
* [ubuntu] Change reboot to inline shell
* [ubuntu] Move disk space validation to pester tests
* [ubuntu] Rename helper and tests files
* [ubuntu] Changes to cleanup, post-deployment and r scripts