bump chart version

Author: vvasilevbosch

deployment/helm/ditto/Chart.yaml

@@ -16,7 +16,7 @@ description: |
   A digital twin is a virtual, cloud based, representation of his real world counterpart
   (real world “Things”, e.g. devices like sensors, smart heating, connected cars, smart grids, EV charging stations etc).
 type: application
-version: 3.5.6  # chart version is effectively set by release-job
+version: 3.5.7  # chart version is effectively set by release-job
 appVersion: 3.5.6
 keywords:
   - iot-chart