[enhancement] Extract generator to an individual cli-tool

[BobAnkh]

Is your feature request related to a problem? Please describe

Extract generator to an individual cli-tool called auto-generate-changelog-cli.

Description of the new feature/enhancement

Extract generator to an individual cli-tool called auto-generate-changelog-cli.

Proposed technical implementation details (optional)

To do

Additional context

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[gitmagic-app]

All sorted. 👍

[gitmagic-app]

Everything looks good 👍