install `rai_intefaces` with `apt`

[boczekbartek]

Is your feature request related to a problem? Please describe.
rai_intefaces is stored in a separate repository that is published as ubuntu package.

Describe the solution you'd like
Install rai_interfaces from apt.

Describe alternatives you've considered

Additional context
Currently rai_interfaces is imported and built along with other ros2 packages in rai workspace.

[maciejmajek]

I was able to install rai interfaces through apt on jazzy. Please confirm on humble
I am updating the docs to reflect this #612