add etc-path to post-job.yaml in helm chart (#17148)

helm/minio/templates/post-job.yaml

@@ -45,6 +45,8 @@ spec:
         fsGroup: {{ .Values.postJob.securityContext.fsGroup }}
       {{- end }}
       volumes:
+        - name: etc-path
+          emptyDir: {}
         - name: minio-configuration
           projected:
             sources:
@@ -100,6 +102,8 @@ spec:
             - name: MINIO_PORT
               value: {{ .Values.service.port | quote }}
           volumeMounts:
+            - name: etc-path
+              mountPath: /etc/minio
             - name: minio-configuration
               mountPath: /config
             {{- if .Values.tls.enabled }}