embark-target-injection-hooks with embark-become

[spepo]

Hi,

First of all, thank you so much for this wonderful package. I just started using it, so my apologies if I am asking something that was discussed before.

I'm trying to use embark-become such that the minibuffer content is modified before passing it through. It could go to a different command or even the same command (in my case consult-grep). From the documentation I assumed that configuring embark-target-injection-hooks would work, but I found that they are not called for some minibuffer-only actions, including embark-become. I see that embark--become-command always inserts the content as retrieved by embark-become. It doesn't treat the minibuffer input as a 'target' that is getting injected.

Would it make sense to generalize embark-become and embark-target-injection-hooks so the two can work together? I'd expect there to be other use cases that require altering the minibuffer content during embark-become.