use precompiled signal clients binaries

[technillogue]

use exquo/signal-libs-build#3

https://gitlab.com/packaging/signal-cli#support ?

idem for auxin

[technillogue]

maybe https://github.com/mobilecoinofficial/auxin/actions/runs/1825246045

https://github.com/mobilecoinofficial/auxin/suites/5254433855/artifacts/161993489

[cxloe]

Could possibly host another instance of this: https://github.com/oprypin/nightly.link

( or just use it, credit to @technillogue )

[technillogue]

i think the proper thing to do might be to have a release workflow that publishes versioned artifacts the same way as signal-cli, but we can stick nightly in the docs to start