Add option to cancel in-progress commit

[jeremybeard]

For repos with long-running pre-commit hooks (can be minutes) it would be good if there was an option to cancel the commit action instead of having to wait for it to finish.

[vs-code-engineering]

This feature request is now a candidate for our backlog. The community has 60 days to upvote the issue. If it receives 20 upvotes we will move it to our backlog. If not, we will close it. To learn more about how we handle feature requests, please see our documentation.

Happy Coding!