chore(server): support elasticsearch apiKey (#12405)

.github/helm/affine/templates/indexer-secret.yaml

@@ -1,4 +1,4 @@
-{{- if .Values.global.indexer.password -}}
+{{- if .Values.global.indexer.apiKey -}}
 apiVersion: v1
 kind: Secret
 metadata:
@@ -9,5 +9,5 @@ metadata:
     "helm.sh/hook-delete-policy": before-hook-creation
 type: Opaque
 data:
-  indexer-password: {{ .Values.global.indexer.password | b64enc }}
+  indexer-apiKey: {{ .Values.global.indexer.apiKey | b64enc }}
 {{- end }}