[feat] ensure sync fails will raise an exception

This commit makes 2 changes that allow sync failures to raise exceptions that
can be caught by the api:

  1. Remove try/except statements in sync.py level that would prevent an
     exception to be caught by the soledad client api.

  2. Ensure that if an asynchronous decrypting process fails the exception
     will be re-raised to eventually reach the api.

Related: #6757.

0 files changed, 0 insertions, 0 deletions