feat：修复polaris之间走eureka同步接口出现报错的问题

[andrewshan]

Please provide issue(s) of this PR:
Fixes #827

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[polaris-test-bot]

2022-11-30 17:51:22: =========TEST START==========
2022-11-30 17:51:58: Pre-Merge check success! Now we will perform a full automated test which is expected to take 2 hours, thank you for your patience.
2022-11-30 18:03:50: [STANDALONE VERSION]PR autotest FAILED! We executed 14 test cases and 12 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140101783/sta/qta-report.html
2022-11-30 18:03:53: [CLUSTER VERSION] PR autotest FAILED! We executed 14 test cases and 13 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140101783/clu/qta-report.html
2022-11-30 18:03:57: [KUBENETES VERSION]PR autotest FAILED! We executed 14 test cases and 13 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140101783/k8s/qta-report.html