Add support for Personal Package Archive (PPA) installation of Nimbus

[superphiz]

Is your feature request related to a problem? Please describe.

Current installation methods require the user to go to an external source to install nimbus rather than using a package system like apt available in Ubuntu.

Describe the solution you'd like

Ethereum maintains a PPA and geth is currently most-easily installed using this method. If other clients adopt the PPA installation method it will significantly reduce the effort required to install a Consensus client and enable people with limited technical ability to quickly and easily upgrade their consensus client using standard apt repositories.

Describe alternatives you've considered

Additional context Add any other context or screenshots about the feature request here.

[arnetheduck]

An experimental x86_64 package of 22.6.1 is available for testing from https://paste.c-net.org/CardsDripping

[arnetheduck]

Debian packages now available from https://apt.status.im/ - installation is as simple as apt install nimbus-beacon-node! https://nimbus.guide/binaries.html contains more details.