Wrong helm chart appVersion format

[dstockhammer]

Installing the latest version of the Helm chart without overriding the image tag results in the following error:

Failed to pull image "quay.io/sighup/permission-manager:1.9.0": rpc error: code = NotFound desc = failed to pull and unpack image "quay.io/sighup/permission-manager:1.9.0": failed to resolve reference "quay.io/sighup/permission-manager:1.9.0": quay.io/sighup/permission-manager:1.9.0: not found

The reason for this is that the Helm chart's appVersion format doesn't match the Docke image tag, which is prefixed with v.

The workaround for this is to override the image.tag in values yaml like so, but the appVersion in the chart should be changed to the correct format.

image:
  tag: v1.9.0