Fix cargo about install

[0HyperCube]

Currently the install doesn't do anything:

warning: none of the package's binaries are available for install using the selected features
  bin "cargo-about" requires the features: `cli`
Consider enabling some of the needed features by passing, e.g., `--features="cli"`

Please consider reviewing @timon-schelling. Thanks.

[timon-schelling]

Thanks

[cubic-dev-ai]

No issues found across 1 file

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}