Update prepare-release.sh

Author: chris1howell

prepare-release.sh

@@ -5,10 +5,12 @@
 pio run -e emonevse
 pio run -e openevse
 pio run -e emonevse_eu
+pio run -e emonevse_v6
 
 cp .pio/build/emonevse/firmware.hex emonevse.hex
 cp .pio/build/openevse/firmware.hex openevse.hex
 cp .pio/build/openevse_eu/firmware.hex openevse_eu.hex
+cp .pio/build/openevse_v6/firmware.hex openevse_v6cgmi.hex
 ls *.hex
 
 echo "Done"