bootc install-to-disk seems to "reset" any passwords.

When installing via `bootc install-to-disk` with these commands:

```sh
sudo podman run \
--rm \
--privileged \
--pid=host \
-v /var/lib/containers:/var/lib/containers \
-v /dev:/dev \
--security-opt label=type:unconfined_t \
mycontainer/foobar \
bootc install to-disk /dev/nvme0n1 --filesystem xfs --wipe
```

With a "test" Containerfile:

```Dockerfile
FROM quay.io/fedora/fedora-bootc:43
# ONLY FOR TESTING bootc install-to-disk
RUN echo "root:root" | chpasswd
```

After installing to disk, unplugging the live USB stick and booting into the OS, I'm unable to login as root/root.

**To replicate:**

1. Build your Containerfile above ^^
2. Perform the `bootc install-to-disk` to a bare metal / actual device
3. Try to login (wrong password).

**I can confirm that:**
* I do NOT run into this issue if I create the `.raw` from bootc-image-builder / I am able to login fine.
* Building the "anaconda-iso" and using that, I will also not get this issue either.