Update dependency org.springdoc:springdoc-openapi-ui to v1.6.9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.springdoc:springdoc-openapi-ui (source)	1.6.8 -> 1.6.9

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Release Notes

springdoc/springdoc-openapi

### [`v1.6.9`](https://togithub.com/springdoc/springdoc-openapi/blob/HEAD/CHANGELOG.md#​169---2022-05-22) ##### Added - [#​1664](https://togithub.com/springdoc/springdoc-openapi/issues/1664) - Add Schema properties support in method-level [@​RequestBody](https://togithub.com/RequestBody) - [#​1181](https://togithub.com/springdoc/springdoc-openapi/issues/1181) - Initial OpenAPI 3.1 support - [#​1651](https://togithub.com/springdoc/springdoc-openapi/issues/1651) - Ease group declaration through code or properties with actuators ##### Changed - upgrade to spring-boot 2.7.0 - upgrade swagger-ui: 4.11.1 - upgrade classgraph: 4.8.147 - upgrade spring-native: 0.11.5 - upgrade spring-cloud-function: 3.2.4 ##### Fixed - [#​1663](https://togithub.com/springdoc/springdoc-openapi/issues/1663) - [@​Schema](https://togithub.com/Schema) annotation with type String and allowableValues set doesn't generate enum drop-down in swagger-ui after upgrading from 1.6.6 (when Spring custom converter is used) - [#​1655](https://togithub.com/springdoc/springdoc-openapi/issues/1655) - OpenAPIService is using ObjectMapper without configured modules since SpringDoc 1.6.7. - [#​1648](https://togithub.com/springdoc/springdoc-openapi/issues/1648) - Tags with only name provided are being added to the openAPI.tags field. - [#​1641](https://togithub.com/springdoc/springdoc-openapi/issues/1641) - ConcurrentModificationException when querying /v3/api-docs/{group} concurrently for different groups - [#​1634](https://togithub.com/springdoc/springdoc-openapi/issues/1634) - Generating doc for entities with map attribute does not work - [#​1633](https://togithub.com/springdoc/springdoc-openapi/issues/1633) - GroupedOpenApi.builder addOpenApiCustomiser execution order is reversed - [#​1630](https://togithub.com/springdoc/springdoc-openapi/issues/1630) - Remove repeated HttpSession - [#​1659](https://togithub.com/springdoc/springdoc-openapi/issues/1659) - fix oauth redirection when used in spring-native

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