[Bug][chunjun-connectors] jdbc's properties not work where jdbc's reader has set properties (#1874)

* [hotfix-1856]  [chunjun-core] Fix the problem that oss's secret should be hidden

* [Bug][chunjun-connectors] jdbc's properties not work where jdbc's reader has set properties

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Co-authored-by: xuchao <xuchao@dtstack.com>

Author: AliceXiaoLu