Fix YAML parsing error in deployment template

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

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

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 }}
+{{- if .Values.orchard.database.existingSecret -}}
-{{- .Values.orchard.database.existingSecretPasswordKey }}
+{{- .Values.orchard.database.existingSecretPasswordKey -}}
-{{- else if .Values.postgresql.enabled }}
+{{- else if .Values.postgresql.enabled -}}
 password
-{{- else }}
+{{- else -}}
 password
-{{- end }}
+{{- end -}}
 {{- end }}
 
 {{/*