Bump org.openapitools:openapi-generator from 7.8.0 to 7.9.0 (#422)

Bumps [org.openapitools:openapi-generator](https://github.com/openapitools/openapi-generator) from 7.8.0 to 7.9.0.
- [Release notes](https://github.com/openapitools/openapi-generator/releases)
- [Changelog](https://github.com/OpenAPITools/openapi-generator/blob/master/docs/3.0.0-release-note.md)
- [Commits](OpenAPITools/openapi-generator@v7.8.0...v7.9.0)

---
updated-dependencies:
- dependency-name: org.openapitools:openapi-generator
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -73,7 +73,7 @@
 		<!-- ===================================================================== -->
 
 		<version.io.micronaut>4.6.3</version.io.micronaut>
-		<version.org.openapitools.generator>7.8.0</version.org.openapitools.generator>
+		<version.org.openapitools.generator>7.9.0</version.org.openapitools.generator>
 		<version.org.openapitools.jackson.nullable>0.2.6</version.org.openapitools.jackson.nullable>
 
 	</properties>