Bump org.openapi.generator from 7.11.0 to 7.12.0

Bumps org.openapi.generator from 7.11.0 to 7.12.0.

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

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -11,7 +11,7 @@ spotless = "7.0.2"
 springDependencyManagement = "1.1.7"
 springboot = "3.4.3"
 springdoc = "2.8.5"
-swagger = "7.11.0"
+swagger = "7.12.0"
 testcontainers = "1.20.5"
 
 [libraries]