splicectl: Release - Debian/Ubuntu (apt-get/deb) Package build during github action

Description

Added a github action that deploys a new apt package with the updated splicectl artifact every time a release is submitted to gh.

Motivation and Context

This makes it much easier to install and manage splicectl on Debian/Ubuntu machines now, and any other distros that use apt packages.

See DBAAS-5850

Dependencies

How Has This Been Tested?

I made a fork of this repository and tested the whole process with a manual trigger of the workflow, all of the packages made it to their destination. There is also a test built into the action, where it will use apt-get to install the package and make sure the version that is output by the splicectl version command matches the newest release, in effect verifying the new artifact has been installed.

Screenshots (if appropriate)

Checklist

If the pull request includes user-facing changes, extra documentation is required:

[ ] If the change is user facing, please ensure you add info in one of the Changelog Inclusions sections.

Changelog Inclusions

base feature note
- BREAKING note on base feature
- Basically whatever formatting we have here, just plain-text %> command example
next feature
- note on next feature

Additions

Can now install splicectl on Debian and Ubuntu machines using the instructions in the top level readme.

splicemachine / splicectl