Drop pygobject dependency

[agners]

It is no longer required since for BlueZ communication the C++ API is used.

[agners]

It seems this dependency is to connect to BlueZ via D-Bus in Python. But python-dbus has been dropped as dependency upstream in project-chip/connectedhomeip#23564. That does seem wrong, since chip/ChipBluezMgr.py and chip-device-ctrl.py still connects to BlueZ directly, but that is not used by the core chip code, and also not by our server. So for our case, we can definitely drop that.

As for upstream, chip/ChipBluezMgr.py and chip-device-ctrl.py is shipped as part of the chip-core wheel. Ideally, we should move this to a separate package, maybe into the REPL package.

[agners]

Tested this builds using WS, I can still pair a device using BLE, which proves that pygobject is indeed not necessary.

[agners]

As for upstream, chip/ChipBluezMgr.py and chip-device-ctrl.py is shipped as part of the chip-core wheel. Ideally, we should move this to a separate package, maybe into the REPL package.

Implemented with project-chip/connectedhomeip#25055