update Ngrok installation to use repository

[browner12]

by using the repository, this will allow us to have a standard install for both our x86 and ARM versions. it will also make upgrading easier for end users by using apt, rather than possibly waiting for a new box build.

this change is also using the new version of key signing. the following links were spectacular resources for this process:

https://wiki.debian.org/DebianRepository/UseThirdParty
https://www.linuxuprising.com/2021/01/apt-key-is-deprecated-how-to-add.html
https://askubuntu.com/questions/1286545/what-commands-exactly-should-replace-the-deprecated-apt-key?newreg=c7d51f5afac945fea79db7a504d68e76

One question I have is the DEB references "buster", which is a Debian codename. I've never fully understood what this meant, but it seems to work even though we aren't on that release. Should it be replaced with something like "stable"?

[svpernova09]

Thanks!

[svpernova09]

One question I have is the DEB references "buster", which is a Debian codename. I've never fully understood what this meant, but it seems to work even though we aren't on that release. Should it be replaced with something like "stable"?

This refers to the Debian distro. buster is Debian 10.3. In Ubuntu you'd see jammy for 22.04. It likely works because the base buster requirements are satisfied by the Ubuntu version we're running so we see it "just work". Often times these denote the OS compatible w/ the package source you're adding.