Update manifest.json (#1468)

bump version to v0.7.0

Author: lbbrhzn

custom_components/ocpp/manifest.json

@@ -16,5 +16,5 @@
 		"ocpp>=2.0.0",
 		"websockets>=14.1"
 	],
-	"version": "0.6.3"
+	"version": "0.7.0"
 }