Issue/easee prevent parallel start stop

[GrimmiMeloni]

Fix #8398

Followup to #8307, removed retry logic for empty responses, as according to new found understanding of the API these will always yield the same result.

Marking as draft for now. Will have to wait till sunrise tomorrow to see if this works.

[GrimmiMeloni]

This is ready for review / merge again.

I have tested locally, including reset of the WB to replicate the scenario that @kai-morich had.
Enabling was still not required for my box, but it returned the empty reply and we got past that.
Resume Charge + Settings for Dynamic Charger current still looks solid. Car started charging as expected.

[kai-morich]

ich teste gerade deinen PR branch. Warte noch auf Sonne für 1p3p-Umschaltung, sieht aber soweit gut aus. Lädt korrekt, keine Warnings, keine unnötigen Requests.

folgende Sequenz zeigt schön das Verhalten mit leerer response.
Das blaue Licht wird mit smartCharging angeschaltet mit async response. Aus unerfindlichen Gründen liefert ProductUpdate false dadurch wird der Status in evcc zurückgesetzt und smartCharging nochmal abgeschickt, diesmal mit leerer response, weil Status easee intern wohl inzwischen richtig. Damit ist smartCharging erledigt und wird nicht mehr wiederholt.

[easee ] TRACE 2023/06/14 15:19:11 POST https://api.easee.com/api/chargers/EHCUMYZ7/settings
[easee ] TRACE 2023/06/14 15:19:11 {"smartCharging":true}
--
[{"device":"EHCUMYZ7","commandId":11,"ticks":638223455517978810}]
[easee ] TRACE 2023/06/14 15:19:12 CommandResponse EHCUMYZ7: {SerialNumber:EHCUMYZ7 ID:11 Timestamp:2023-06-14 13:19:11.797881 +0000 UTC DeliveredAt:2023-06-14 13:19:10.335 +0000 UTC WasAccepted:true ResultCode:0 Comment: Ticks:638223455517978810}
[lp-1  ] DEBUG 2023/06/14 15:19:12 charger status: B
[lp-1  ] DEBUG 2023/06/14 15:19:12 available power 1567W < 4140W min 3p threshold
[lp-1  ] DEBUG 2023/06/14 15:19:12 start phase scale1p timer
[lp-1  ] DEBUG 2023/06/14 15:19:12 phase scale1p in 3m0s
[lp-1  ] DEBUG 2023/06/14 15:19:12 pv charge current: 2.27A = 0A + 2.27A (-1567W @ 3p)
[site  ] DEBUG 2023/06/14 15:19:12 ----
[lp-1  ] DEBUG 2023/06/14 15:19:12 charge power: 0W
[site  ] DEBUG 2023/06/14 15:19:12 static grid tariff
[easee ] TRACE 2023/06/14 15:19:13 ProductUpdate EHCUMYZ7: LEDMODE 21
[easee ] TRACE 2023/06/14 15:19:13 ProductUpdate EHCUMYZ7: SMART_CHARGING false
[easee ] TRACE 2023/06/14 15:19:13 ProductUpdate EHCUMYZ7: SMART_CHARGING false
[site  ] DEBUG 2023/06/14 15:19:27 pv power: 1946W
[site  ] DEBUG 2023/06/14 15:19:27 grid power: -1578W
[site  ] DEBUG 2023/06/14 15:19:27 site power: -1578W
[lp-1  ] DEBUG 2023/06/14 15:19:27 charge currents: [0.338 0.012 0.009]A
[lp-1  ] DEBUG 2023/06/14 15:19:27 charge meter total import: 1423.285kWh
[easee ] TRACE 2023/06/14 15:19:27 POST https://api.easee.com/api/chargers/EHCUMYZ7/settings
[easee ] TRACE 2023/06/14 15:19:27 {"smartCharging":true}
--
[]

[andig]

LGTM!