Write new version to package.json after `npip install --upgrade`

[Araxeus]

It seems like currently, the package.json version needs to be updated manually after running npip install --upgrade
would be nice if it could be updated automatically

I have made a script for myself that does that – can maybe use some of it as inspiration
https://github.com/Araxeus/Youtube-Volume-Scroll/blob/nopy-peru/scripts/python-deps.js