Builds and releases only the _settings companion firmware variants
(USB and BLE) which contain the settings screen with display brightness,
buzzer, TX power, auto-off, GPS interval, timezone, low battery threshold,
and battery display mode.
Triggers on tags matching 'wio-tracker-*' (e.g. wio-tracker-v1.0.0)
or manually via workflow_dispatch. Creates a draft GitHub release.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>