Bump org.springdoc:springdoc-openapi-starter-webmvc-ui

Bumps [org.springdoc:springdoc-openapi-starter-webmvc-ui](https://github.com/springdoc/springdoc-openapi) from 2.8.6 to 2.8.9.
- [Release notes](https://github.com/springdoc/springdoc-openapi/releases)
- [Changelog](https://github.com/springdoc/springdoc-openapi/blob/main/CHANGELOG.md)
- [Commits](springdoc/springdoc-openapi@v2.8.6...v2.8.9)

---
updated-dependencies:
- dependency-name: org.springdoc:springdoc-openapi-starter-webmvc-ui
  dependency-version: 2.8.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle

@@ -34,7 +34,7 @@ dependencies {
 	testAnnotationProcessor 'org.projectlombok:lombok'
 
 	// swagger 3 springdoc openapi 2
-	implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.8.6'
+	implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.8.9'
 
 
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'