docker.io/library/rethinkdb:2.4.3 is 2.4.4

Tag 2.4.3 points to 2.4.4, tag 2.4.4 is missing.

```
podman run -ti docker.io/library/rethinkdb:2.4.3 rethinkdb --version
rethinkdb 2.4.4~0bookworm (aarch64-linux-gnu) (GCC 12.2.0)
Linux 6.11.3-200.fc40.aarch64 aarch64
```