Force GATT client to sync database with Zephyr

I have a device that added a characteristic in a software update. After doing a DFU, some clients (specifically older Android phones and Linux devices) don't perform discovery and update their cached GATT databases. Is there a way to force the GATT client to perform discovery of all services? My first thought was to send a "Service Changed" indication for all attributes, but that interface doesn't seem to be exposed by Zephyr's GATT API.

Device: nRF5340

NCS version: 2.0.2