Tough to give help with this little info, but it may be that your kubernetes cluster does not have a default storage class set, so the PVC is stuck waiting eternally.
You can determine if you have a storage class set via kubectl get storageclass and an item returned should have (default) next to it. You can change the default storage class via Change the default StorageClass | Kubernetes
If this isn’t it, it might be helpful to do kubectl describe pvc postgres-15-awx-postgres-15-0 -n awx and see if there are errors.