Add gitleaks code cover to actions

[CAGalbraith]

Description

• Adds gitleaks to CI action to make sure nothing leaks
• Failed to publish unit test results - awkward file path dependencies with pytest and docker. Can't get it to work.

Has This Been Tested?

• [x] Yes

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Checklist:

• [x] I have performed a self-review of my own code
• [x] I have made corresponding changes to the documentation
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] I have checked my code and corrected any misspellings

[github-actions[bot]]

Unit Tests Results

0 tests   0 :white_check_mark:  0s :stopwatch: 0 suites  0 :zzz: 0 files    0 :x:

Results for commit e6c54edb.

:recycle: This comment has been updated with latest results.