bug: Propagate errors from micromamba-shell

[maresb]

If the micromamba-shell command fails, the exit command is not propagated, leading to silent failures.

Consider if possible switching to bash for -o pipefail support.

[pavelzw]

Can you update the version in package.json?

[maresb]

Woah, thanks @pavelzw for the instant response!

Do you know offhand if it would be safe to assume that bash is available?

I'm wondering now if exec would be better here; I think that should propagate the error code and also free us from the parent shell.

[pavelzw]

Do you know offhand if it would be safe to assume that bash is available?

i think this is a fair assumption. micromamba-shell is only supported on unix anyway

exec sounds fair, let's do that

[maresb]

Ok, I need to do a few quick tests first since I'm wondering what's going on in terms of shell processing and if we would lose that with exec

[maresb]

Ok @pavelzw, I checked and micromamba seems to be already doing the right thing by acting as a shell with -o pipefail enabled, so I believe exec should do the trick! I rebased with the exec solution, so ready for re-review. Thanks!!!