Bump org.springframework:spring-framework-bom from 6.2.7 to 6.2.8 (#3094)

Bumps [org.springframework:spring-framework-bom](https://github.com/spring-projects/spring-framework) from 6.2.7 to 6.2.8.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](https://github.com/spring-projects/spring-framework/compare/v6.2.7...v6.2.8)

---
updated-dependencies:
- dependency-name: org.springframework:spring-framework-bom
  dependency-version: 6.2.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

build.gradle

@@ -68,7 +68,7 @@ ext {
 	reactorVersion = '2024.0.6'
 	springDataVersion = '2024.1.6'
 	springRetryVersion = '2.0.12'
-	springVersion = '6.2.7'
+	springVersion = '6.2.8'
 	testcontainersVersion = '1.20.6'
 
 	javaProjects = subprojects - project(':spring-amqp-bom')