Include the packer build UUID in the generated /etc/<project>-release file
Include the packer build UUID in the generated /etc/<project>-release file

Will end up changing from:

```
nubis-base v1.4.0
```

to
```
nubis-base v1.4.0 917d5318-7376-b0fc-2ed3-6f1b2f4d01ad
```

And it's purely cosmetic, no automation uses this

limed/nubis-builder,tinnightcap/nubis-builder,Nubisproject/nubis-builder