Bump springVersion from 6.1.12 to 6.1.13

Bumps `springVersion` from 6.1.12 to 6.1.13.

Updates `org.springframework:spring-context` 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)

Updates `org.springframework:spring-test` 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-context
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework:spring-test
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

junit5-spring/build.gradle

@@ -5,7 +5,7 @@ repositories {
 ext {
     slf4jVersion  = '2.0.16'
     logbackVersion  = '1.5.8'
-    springVersion = '6.1.12'
+    springVersion = '6.1.13'
 
     junitJupiterVersion = '5.11.0'
 }