updates version example from 4.0.0 to 4.2.0
@@ -26,7 +26,7 @@ Variable | Example | Description
`PGO_CMD` | kubectl | Cluster management tool executable
`PGO_IMAGE_PREFIX` | crunchydata | Container image prefix
`PGO_OPERATOR_NAMESPACE` | pgo | Kubernetes namespace for the operator
-`PGO_VERSION` | 4.0.0 | Operator version
+`PGO_VERSION` | 4.2.0 | Operator version
{{% notice tip %}}
`examples/envs.sh` contains the above variable definitions as well as others used by postgres-operator tools
