### Description

Use the postgres 16 containers

> NOTE:

### Checklist

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- [ ]
[CHANGELOG.md](https://github.com/sourcegraph/sourcegraph/blob/main/CHANGELOG.md)
updated
- [ ] [K8s Upgrade notes
updated](https://github.com/sourcegraph/sourcegraph/blob/main/doc/admin/updates/kubernetes.md)
- [x] Sister
[deploy-sourcegraph-k8s](https://github.com/sourcegraph/deploy-sourcegraph-docker)
change:
- [x] Sister
[deploy-sourcegraph-docker](https://github.com/sourcegraph/deploy-sourcegraph-docker)
change:
- [x] All images have a valid tag and SHA256 sum
- [x] I acknowledge that
[deploy-sourcegraph-k8s](https://github.com/sourcegraph/deploy-sourcegraph-k8s)
is now the preferred Kubernetes deployment repository

### Test plan
CI
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{"version":"v5.10.0","inputs":"server=5.10.0","type":"minor"}

{"version":"v5.10.0","inputs":"server=5.10.0","type":"minor"}