Run dependency updates to fix issues with vulnerable packages

[rajbos]

Hi, an internal user requested to use this action so I have run our standard security scan on this action. It found 14 dependency issues, most of them in simple-git, which already has version 3.19.1 available.

If you enable Dependabot version updates (and / or security updates), you'll get new Pull Requests for these updates automatically. If you need help with it, please let me know, I use it a lot.

Could the dependencies please be updated to their latest version so that we can on-board the action for our users?

@derberg

[derberg]

@rajbos hey, done but with simple-git - it had a major release, I need to do some manual tests before I merge and release