🐛 Fix ExternalDB settings are not passed to temporal deployment (#10923)

* Fix for issue #7067

* Basing external-db secret on conditional for postgresql in helm chart

Author: gavnate

charts/airbyte/templates/external-db.yaml

@@ -0,0 +1,11 @@
+{{- if not .Values.postgresql.enabled }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: airbyte-externaldb
+  annotations:
+    helm.sh/hook: pre-install,pre-upgrade
+    helm.sh/hook-weight: "-1"
+data:
+  postgresql-password: {{ .Values.externalDatabase.password | b64enc }}
+{{- end }}