fix(cli): corrupted icons in bundled macOS icons

[FabianLars]

What kind of change does this PR introduce?

• Bugfix
• Feature
• Docs
• New Binding issue #___
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change?

• Yes, and the changes were approved in issue #___
• No

Checklist

• When resolving issues, they are referenced in the PR's title (e.g fix: remove a typo, closes #___, #___)
• A change file is added if any packages will require a version bump due to this PR per the instructions in the readme.
• I have added a convincing reason for adding this feature, if necessary

Other information

If there's a reason why we can't use these 2 icon types there would be 2 alternatives.
One only works on Big Sur and above and the other one works in older versions afaik but is undocumented (writing RGB data into PNG fields) and would require a somewhat bigger change in rust-icns.

Check https://en.wikipedia.org/wiki/Apple_Icon_Image_format if you need nightmare material.