Bump org.springframework:spring-websocket from 6.1.12 to 6.1.13

Bumps [org.springframework:spring-websocket](https://github.com/spring-projects/spring-framework) from 6.1.12 to 6.1.13.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v6.1.12...v6.1.13)

---
updated-dependencies:
- dependency-name: org.springframework:spring-websocket
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

gradle/libs.versions.toml

@@ -30,7 +30,7 @@ moshi = "1.15.1"
 nexus-publish-plugin = "2.0.0"
 okhttp = "4.12.0"
 slf4j = "2.0.16"
-spring = "6.1.12"
+spring = "6.1.13"
 tyrus = "2.2.0"
 vyarus-github-info-plugin = "2.0.0"