Disable active BLE scans to save some power and RF pollution

[syssi]

esp32_ble_tracker:
  scan_parameters:
    active: false

@man55 @valdiks @peterhax Could one of you do me a favor and add the additional setting above to your esp32_ble_tracker section and give it a try? Is the component still able to talk to your BMS? If yes this setting is recommended to avoid active communication with all discovered BLE devices around.

[peterhax]

I have added that to to the ESPHome config, and it still works fine!

[syssi]

Thanks for testing!