Fixing various errors in the repo

[max-rocket-internet]

• <all charts> Update postgresql dependency version to stop the error:

  Error: could not find : chart postgresql not found in https://charts.bitnami.com/bitnami
  

• kubecost-reports-exporter: docker image pushed to stop error:

  error scanning image thomasnyambati/kubecost-reports-exporter:1.0.5: image not found (package kubecost-reports-exporter:1.1.0)
  

• kube-bench fix logo image to fix error:

  error getting logo image https://raw.githubusercontent.com/aquasecurity/kube-bench/master/images/kube-bench.png: unexpected status code received: 404 (package: kube-bench version: 0.1.4)