Queuing a Run when Workspace is Running #121
Description
As multiple integrations attempt to trigger runs on a workspace, it can happen that one integration triggers a run on a workspace while it is locked and applying an existing run.
In the current logic, when a new run is attempted as the workspace has an existing run, it fails out with an error stating that the workspace is locked.
In desired behavior, if a workspace is locked due to an existing/pending run, it should queue the the run.