FR: install.sh add rhino linux

### What are you trying to do?

Add Rhino Linux as an Ubuntu derivative:

```
OS=3Dubuntu
VERSION=3Ddevel
PACKAGETYPE=3Dapt
UNAME=3DLinux t495r 6.13.2-061302-generic #202502081010 SMP PREEMPT_DYNAMIC
Sat Feb 15 08:09:35 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

PRETTY_NAME=3D"Rhino Linux 2025.2 (mainline)"
NAME=3D"Rhino Linux"
VERSION_ID=3D"2025.2"
VERSION=3D"2025.2 (mainline)"
VERSION_CODENAME=3D"devel"
ID=3Dubuntu
ID_LIKE=3Ddebian
HOME_URL=3D"https://rhinolinux.org/"
SUPPORT_URL=3D"https://github.com/rhino-linux"
BUG_REPORT_URL=3D"https://github.com/rhino-linux"
PRIVACY_POLICY_URL=3D"https://www.ubuntu.com/legal/terms-and-policies/priva=
cy-policy"
```

### How should we solve this?

Add support for Rhino Linux

### What is the impact of not solving this?

_No response_

### Anything else?

go/tss/58820