tweak: remove hungry catch in snipe integration

We have a very hungry exception handler that masks some classes of failure in the Snipe-IT integration.

I'm proposing we remove it for now. Errors present as popups thus:

While it is not ideal to present backtraces to "normal" (sorry) users, they can at least screenshot them and tell ~tools.

See: https://phabricator.collabora.com/T33702 and related merge request for Snipe-IT plugin https://gitlab.collabora.com/phabricator/asset-item-application/-/merge_requests/12