[Feature]: update a manifest file automatically for connect

[k-doering-NOAA]

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

For those using the git-backed workflow for Posit connect products, the manifest file can get out of date. A github action could be used to ensure it remains up to date

Describe the solution you would like.

A github action that regenerates the manifest file and opens a pull request.

Describe alternatives you have considered

It's possible that this could introduce errors, if the local version software versions are different?

Additional context

No response