update SelectDB Enterprise performance metrics

[yiguolei]

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Previously there is another PR (https://github.com/ClickHouse/ClickBench/pull/185) to update SelectDB but it is not an official RC version and reverted in https://github.com/ClickHouse/ClickBench/pull/219. As we explained in PR https://github.com/ClickHouse/ClickBench/pull/219, and to make it more persuasive, I use the official RC version [SelectDB Enterprise 2.1.7-rc01] to re-submit this PR.

[yiguolei]

@rschu1ze PTAL

[CLAassistant]

All committers have signed the CLA.

[yiguolei]

@rschu1ze If you need any assistance, feel free to leave me a message and I will follow up.