OPNsense PoC: Upgrading 24.1.10 to 24.7 using boot environments

Upgrading OPNsense 24.1.10 to 24.7 using boot environments and easily being able to switch between the two versions.

Why is this game changing? Imagine upgrading to the latest version and something doesn't quite work, you can now switch back to the previous version until any hotfixes are released. At which point, switch back and applythe update safein the knowledge you can fall back.