Allow specifying the firebase-tools version to use

### The use case you're trying to solve

This action uses `npx firebase-tools` which always runs the latest version of `firebase-tools` (afaict). Instead I'd like to be able to pass the version so that this can deploy using the same version that my team uses locally.

### Change to the action that would solve that use case

See above.

### Other considerations

Nope!