Error Catching for RQAOA Workflow

[shahidee44]

Prerequisites

Before raising this issue, I have already checked that I am:

• running the latest version
• made sure that this issue has not already been filed

Describe the bug

The RQAOA Workflow is missing some form of error catching in the case where a QAOA run is incomplete/crashes midway.

To Reproduce

Link to file
Line 385

Expected behavior

If an error occurred during one of the QAOA runs and the error is caught, but the run is incomplete. The RQAOA should be terminated and whatever information that was obtained should be available in the final workflow object in the result attribute.