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3f16acc5 - Add baidu cloud vector search in vectorstore and fix some unit test in vectorstores (#11605)

Add baidu cloud vector search in vectorstore and fix some unit test in vectorstores (#11605) **Description:** Add baidu cloud vector search in vectorstore --------- Co-authored-by: root <root@icoding-cwx.bcc-szzj.baidu.com> Co-authored-by: Bagatur <baskaryan@gmail.com>