chore(deps): update evcc/evcc docker tag to v0.203.4 (#67)

Co-authored-by: renovate-gh-app-micxer[bot] <202420550+renovate-gh-app-micxer[bot]@users.noreply.github.com>

Author: renovate-gh-app-micxer[bot]

defaults/main.yml

@@ -54,7 +54,7 @@ homestack_ha_mosquitto_image_version: 2.0.21
 homestack_ha_mosquitto_users: {}
 
 # renovate: image=evcc/evcc
-homestack_ha_evcc_image_version: 0.202.1
+homestack_ha_evcc_image_version: 0.203.4
 # homestack_ha_evcc_base_path: ""  # must be set
 # homestack_ha_evcc_installation_id: ""  # must be set
 homestack_ha_evcc_mqtt_user: evcc