feature: an easier method to update all lazy.nvim plugins in the shell

[olivertzeng]

Did you check the docs?

• I have read all the lazy.nvim docs

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

no

Describe the solution you'd like

nvim --headless "+Lazy! sync" +qa
this is the original command to sync(upgrade) all plugins in the shell
however, it's a little too difficult and doesn't show up the upgrade progress or errors.

Describe alternatives you've considered

no

Additional context

No response

[folke]

no

[olivertzeng]

no

Oh ok