Update schema.ts

[yuyichen]

fix schema中array设置minItems 却报错长度或条目数不能大于

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[claassistantio]

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1 out of 2 committers have signed the CLA.

✅ yuyichen
❌ 李力

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[janryWang]

能帮忙加下单测吗，非常感谢

[yuyichen]

单元测试已添加，测试通过了