Describe the bug
服务契约（spring-cloud-starter-tencent-polaris-contract）会和自定义doc冲突，PolarisSwaggerAutoConfiguration实例化了OpenAPI，如果项目再自定义了OpenAPI会存在冲突，建议加上ConditionalOnMissingBean。
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Expected behavior
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Environment
Version: [e.g.1.13.1-2022.0.4]
OS: [e.g. CentOS7]
Additional context
Add any other context about the problem here.
Describe the bug 服务契约（spring-cloud-starter-tencent-polaris-contract）会和自定义doc冲突，PolarisSwaggerAutoConfiguration实例化了OpenAPI，如果项目再自定义了OpenAPI会存在冲突，建议加上ConditionalOnMissingBean。
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Expected behavior A clear and concise description of what you expected to happen.
Environment
Additional context Add any other context about the problem here.