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

Bumps [org.springdoc:springdoc-openapi-starter-webmvc-ui](https://github.com/springdoc/springdoc-openapi) from 2.8.1 to 2.8.3.
- [Release notes](https://github.com/springdoc/springdoc-openapi/releases)
- [Changelog](https://github.com/springdoc/springdoc-openapi/blob/main/CHANGELOG.md)
- [Commits](springdoc/springdoc-openapi@v2.8.1...v2.8.3)

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

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

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         springDependencyManagementVersion = "1.1.7"
 
         // Swagger
-        springDocVersion = "2.8.1"
+        springDocVersion = "2.8.3"
         findBugsJsr305Version = "3.0.2"
     }
 }