Fold in bug fixes

[karacolada]

Description

Fixed handling of license files:

• fixed bug around accessing undefined object (#31)
• added COPYING as a possible license file name (#30)

Related issue: #30 and #31

How has this been tested?

Automated testing in GH actions, manual testing in local dev environment as described in the README.

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Code style update (formatting, renaming)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] Documentation content changes
• [ ] Other (please describe):

Checklist

• [z] I have read the contributor guide.
• [z] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [z] All new and existing tests passed.

[github-actions[bot]]

:clipboard: Code Coverage

Package	Line Rate	Branch Rate	Health
.	61%	35%	➖
config	100%	100%	✔
controllers	86%	56%	✔
evaluators	48%	27%	❌
harvester	58%	48%	➖
helper	65%	55%	➖
models	75%	85%	✔
Summary	63% (7720 / 12173)	55% (3306 / 6024)	➖

[github-actions[bot]]

:clipboard: Pytest Results

19 tests  ±0   19 :white_check_mark: ±0   35s :stopwatch: +15s  1 suites ±0    0 :zzz: ±0   1 files   ±0    0 :x: ±0 

Results for commit 1778e730. ± Comparison against base commit 0aadc417.