[FEATURE] - Add ability to rebrand already-installed agents.

[bitbound]

Feature Request Checklist

• Searched for existing feature requests
• Filled out all the sections below

What problem would this feature solve?

Currently, agents cannot auto-update to a new version with different branding. The new binary will have a different file name, service name, and installation path. This functionality will need to be explicitly added.

For now, guards are in place to prevent the agent from attempting the update and bricking itself (or another installed agent).