Remove sys.exit from exception handling

[woop]

We're currently calling sys.exit on exception handling here https://github.com/feast-dev/feast/blob/master/sdk/python/feast/feature_store.py#L301, which will cause the Feast (and wrapping) process to exit. Instead, we should either reraise or even just let the exception bubble up.

[HeardACat]

Is the "simple" fix just to reraise everything? Or is it more nuanced than that?
Happy to put a quick PR for it.

[achals]

@charliec443 I think it's sufficient to not catch the exception at all if all we're doing it re-raising it - but I was looking at the code and I don't see a sys.exit call anywhere in the feature_store.py. Maybe it was removed in an intermediate PR?

[HeardACat]

Yes I think you're right. it was progressively removed in in some of the PRs, I think namely the Redshift one.

[achals]

Alright, going to close this out in that case!

[achals]

Fixed by #1641