Extract squash commits

[orhun]

Is your feature request related to a problem? Please describe.

Here is an example commit message:

Pull request #8: Example commit msg

Merge in GO-TEST-CDX/ryaniscool from example-commit-msg to main

Squashed commit of the following:

commit 140e7e40273399cde9e78f6954e00aa0f9661de5
Author: Ryan Currah <[email protected]>
Date:   Tue Feb 27 08:06:54 2024 -0500

    feat(processor): added new card payment type

    Issue: TST-1

commit ef9da8b96278536cb080b1b552e95f218e18c5d3
Author: Ryan Currah <[email protected]>
Date:   Tue Feb 27 08:06:21 2024 -0500

    chore(readme): added setup instructions

    Added setup instructions

    Issue: TST-1

It would be nice to parse this and have each entry in the changelog as a separate entry. Like so:

## Features
- (processor) Added new card payment type

## Misc
- (readme): Added setup instructions

Describe the solution you'd like

Parse squashed commit messages.

Describe alternatives you've considered

split_commits might also help with some custom parsers.

Additional context

https://discord.com/channels/1093977388892819553/1211967487076474920/1212023614111481958