bug: Install script fails if `/etc/resolve.conf.host` already exists

### Bug description

The install script will fail if `/etc/resolve.conf.host` already exists. https://github.com/bluerobotics/BlueOS/blob/012a29e20e656a0f7e7a3e24b0b8748cb5f7602e/install/install.sh#L247

```
Default extensions settings configured successfully.
d98dd6e4adcddf4198a35d331b87b06c3e8655201a9f11006b6f923c7effc157
Starting network configuration.
Configuring blueos avahi service
Avahi daemon config file found, changing avahi host name to: blueos-avahi
Configure hostname to blueos
Restarting machine-id.
Restarting random-seeds.
creating dns link
ln: failed to create hard link '/etc/resolv.conf.host': File exists
```

### Steps to reproduce

1. Already have a file at `/etc/resolve.conf.host` (i.e., from a previous install)
2. `sudo su -c 'curl -fsSL https://raw.githubusercontent.com/bluerobotics/blueos-docker/master/install/install.sh | bash'`

### Primary pain point(s)

_No response_

### Additional context

_No response_

### Prerequisites

- [X] I have checked to make sure that a similar request has not already been filed or fixed.