Update for Keypad v2

[I-Connect]

A new parameter has been added to trhe Nuki smartlock config, we need to add this.

https://developer.nuki.io/t/keypad-2-not-setting-has-keypad-flag-in-config-of-nuki-lock/19539

[I-Connect]

added flag to config in branch https://github.com/I-Connect/NukiBleEsp32/tree/keypadv2 @technyon can you test?

[technyon]

Checked and it works!

[I-Connect]

changes merged