Bump org.junit:junit-bom from 5.10.2 to 5.10.3

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit5) from 5.10.2 to 5.10.3.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.10.2...r5.10.3)

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

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

java-codegen/build.gradle.kts

@@ -159,7 +159,7 @@ dependencies {
     implementation("org.apache.maven.resolver", "maven-resolver-supplier", "1.9.20")
 
     // EPL-2.0
-    testImplementation(platform("org.junit:junit-bom:5.10.2"))
+    testImplementation(platform("org.junit:junit-bom:5.10.3"))
     testImplementation("org.junit.jupiter", "junit-jupiter")
     testRuntimeOnly("org.junit.platform", "junit-platform-launcher")
 }