Bump springdoc-openapi-ui.version from 1.6.5 to 1.6.8

Bumps `springdoc-openapi-ui.version` from 1.6.5 to 1.6.8.

Updates `springdoc-openapi-ui` from 1.6.5 to 1.6.8
- [Release notes](https://github.com/springdoc/springdoc-openapi/releases)
- [Changelog](https://github.com/springdoc/springdoc-openapi/blob/master/CHANGELOG.md)
- [Commits](springdoc/springdoc-openapi@v1.6.5...v1.6.8)

Updates `springdoc-openapi-data-rest` from 1.6.5 to 1.6.8
- [Release notes](https://github.com/springdoc/springdoc-openapi/releases)
- [Changelog](https://github.com/springdoc/springdoc-openapi/blob/master/CHANGELOG.md)
- [Commits](springdoc/springdoc-openapi@v1.6.5...v1.6.8)

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

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

Author: dependabot[bot]

pom.xml

@@ -17,7 +17,7 @@
 
 	<properties>
 		<java.version>11</java.version>
-		<springdoc-openapi-ui.version>1.6.5</springdoc-openapi-ui.version>
+		<springdoc-openapi-ui.version>1.6.8</springdoc-openapi-ui.version>
 		<neo4j.version>4.4.5</neo4j.version>
 	</properties>