Fix YAML parsing error in deployment template

- Add whitespace control (-) to postgresql.passwordKey helper
- Prevents newline being inserted in secretKeyRef key value

helm/orchard/templates/_helpers.tpl

@@ -87,13 +87,13 @@ PostgreSQL secret name
 PostgreSQL password key in secret
 */}}
 {{- define "orchard.postgresql.passwordKey" -}}
-{{- if .Values.orchard.database.existingSecret }}
-{{- .Values.orchard.database.existingSecretPasswordKey }}
-{{- else if .Values.postgresql.enabled }}
+{{- if .Values.orchard.database.existingSecret -}}
+{{- .Values.orchard.database.existingSecretPasswordKey -}}
+{{- else if .Values.postgresql.enabled -}}
 password
-{{- else }}
+{{- else -}}
 password
-{{- end }}
+{{- end -}}
 {{- end }}
 
 {{/*