DEB update always requires systemctl daemon-reload

[qrkourier]

Most DEB packages that provide a background service can be updated without reloading the systemd service unit definitions, but I've had to run sudo systemctl daemon-reload every time I updated ziti-edge-tunnel the last few releases, at least. Seems to indicate that the definition file(s) are being detected as changed for some reason. I don't believe that we're intentionally changing those files with every release, and there may be some nuance in systemd that we need to be aware of to smooth out the upgrade process.

[qrkourier]

I installed the test DEB build from main after the PR merged to run-as user ziti. It was necessary to reload the systemd unit definition, probably because it changed to declare the new user and capability directives.