fixes indentation error in omero-server configmap

[iceowlbeer]

Issue

Due to the different indentation of the config key/values in the configmap it comes to an error:

❯ helm template omero omero-server --set config.set.omero.ldap.config=true
Error: YAML parse error on omero-server/templates/configmap.yaml: error converting YAML to JSON: yaml: line 9: did not find expected key

[manics]

Thanks!