Calm Zhu

In function [ListBucketsHeaders](https://github.com/aliyun/alibabacloud-python-sdk/blob/70555da239e8ff94f0c26e2b2eb4e75c105b9986/oss-20190517/alibabacloud_oss20190517/client.py#L4838)'s param header it's type changed from dict( in alibabacloud-oss20190517==1.0.5) to object oss_20190517_models.ListBucketsHeader(in alibabacloud-oss20190517==1.0.5) This is an broken change,it should NEVER be in revisied versions.

ClusterSecretStore provided via vault(kubernetes authed)cannot work when ClusterSecretStore.spec.provider.vault.auth.kubernetes.serviceAccountRef.namespace is omited

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**Describe the bug** ExternalSecret cannot create when use ClusterSecretStore(vault provider and kubernetes auth) `cannot request Kubernetes service account token for service account "xxxxx": serviceaccounts "xxxx" not found ` **To Reproduce**...