Running under podman: Error: requested user's UID 1000001 is too large for the rootless user namespace

If you use podman-compose in a rootless environment, you will get the titled error.
Setting the userId:groupId solved this issue.  Suggest add the user: filed under the primary container as follows:

```
 primary:
    container_name: pubSubStandardSingleNode
    image: solace/solace-pubsub-standard:latest
    shm_size: 1g
    user: "55555:55555"
    ulimits:
```
