Get the SSH public key.

Get the SSH public key corresponding to the private key used by workloads. For example, users may specify multiple scripts which are supposed to be executed on a remote machine at different progress states of a protection group run (for instance - running a script before the run starts and another after the run completes). The public key returned as part of this response should be added on the remote server where the script is to be executed as there is a specific private key used by the workload for remote login.