Bump springdoc-openapi-ui from 1.6.8 to 1.6.9

Bumps [springdoc-openapi-ui](https://github.com/springdoc/springdoc-openapi) from 1.6.8 to 1.6.9.
- [Release notes](https://github.com/springdoc/springdoc-openapi/releases)
- [Changelog](https://github.com/springdoc/springdoc-openapi/blob/master/CHANGELOG.md)
- [Commits](springdoc/springdoc-openapi@v1.6.8...v1.6.9)

---
updated-dependencies:
- dependency-name: org.springdoc:springdoc-openapi-ui
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -66,7 +66,7 @@
 		<dependency>
 			<groupId>org.springdoc</groupId>
 			<artifactId>springdoc-openapi-ui</artifactId>
-			<version>1.6.8</version>
+			<version>1.6.9</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>