[evcc] Adjust to evcc version 0.123.1 (#16114)

[evcc] Adjust to evcc version 0.123.1 (#16114)

* updated url of setTargetEnergy and setTargetSoC to match evcc version 0.123.1
* removed minSoc from Loadpoint (since evcc 0.123.0 part of vehicle)
* renamed from targetEnergy to limitEnergy to match new evcc version
* renamed from targetSoC to limitSoC to match new evcc version
* plementation of vehicle object to match new evcc version 0.123.1 -> new implementation of minSoC and plans (served by new api)

Signed-off-by: Luca Arnecke <luca@arnecke.name>
Signed-off-by: Florian Hotze <florianh_dev@icloud.com>
Signed-off-by: Michael Weger <weger.michael@gmx.net>
Co-authored-by: Florian Hotze <florianh_dev@icloud.com>
Co-authored-by: Michael Weger <weger.michael@gmx.net>