RFE: Option to action to not install committed

[scop]

I would appreciate an option to the GH action that does not install committed, but rather just assumes it is present in $PATH, and invokes it from there.

Rationale for this is that I manage setup of committed myself (using mise) to ensure the same version is installed both locally and in CI for stable results in both, and the action does not respect that, but installs a version it decides.

[scop]

Then again, it's no biggie for me to also invoke committed myself and not use the action. However, it would be nice to be able to use the action, but as long as #419 is not implemented, due to args handling, I'd need to duplicate the default args of the action anyway which diminishes value of being able to use it, and is a maintenance chore.