fix: brev recreate failure due to missing workspace fields and duplicate name errors

[hakhandelwal11]

Problem-

• The recreate command deletes the workspace and then creates a new one. The backend continued to treat the workspace name as in use while the previous workspace remained in the deleting state. This resulted in the create step failing with a duplicate name error.
• The create step also returned 500 errors because the CLI did not send the required workspaceGroupID and instanceType fields in the create request, which are required by the backend.

Solution-

• The change copies WorkspaceGroupID and InstanceType from the deleted workspace and includes them in the create request so the new workspace is created in the same group and with the same instance type.
• A retry mechanism is added for the create step for up to 5 minutes, with a 10-second delay between retries, to handle temporary failures such as duplicate name errors or unexpected EOF.