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

[AliceXiaoLu]

…der has set properties

Purpose of this pull request

Which issue you fix

Fixes # (issue).

Checklist:

• I have executed the 'mvn spotless:apply' command to format my code.
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[AliceXiaoLu]

@chenzhuangjia fix this--#1874

[AliceXiaoLu]

@zoudaokoulife fix this--#1874 , 已重新提交

[AliceXiaoLu]

@zoudaokoulife please review again, Thanks again.