build: bump org.junit:junit-bom from 6.0.2 to 6.0.3 in /example

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit-framework) from 6.0.2 to 6.0.3.
- [Release notes](https://github.com/junit-team/junit-framework/releases)
- [Commits](junit-team/junit-framework@r6.0.2...r6.0.3)

---
updated-dependencies:
- dependency-name: org.junit:junit-bom
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

example/pom.xml

@@ -12,7 +12,7 @@
     <java.version>25</java.version>
     <maven.compiler.source>${java.version}</maven.compiler.source>
     <maven.compiler.target>${java.version}</maven.compiler.target>
-    <junit-jupiter.version>6.0.2</junit-jupiter.version>
+    <junit-jupiter.version>6.0.3</junit-jupiter.version>
     <spring-boot.version>4.0.2</spring-boot.version>
     <cucumber.version>7.34.2</cucumber.version>
     <springdoc-openapi-starter.version>3.0.1</springdoc-openapi-starter.version>