Upgrade to JUnit 6.0.3

Closes gh-36389

build.gradle

@@ -76,7 +76,7 @@ configure([rootProject] + javaProjects) { project ->
 			"https://projectreactor.io/docs/core/release/api/",
 			"https://projectreactor.io/docs/test/release/api/",
 			"https://junit.org/junit4/javadoc/4.13.2/",
-			"https://docs.junit.org/6.0.2/api/",
+			"https://docs.junit.org/6.0.3/api/",
 			"https://www.reactive-streams.org/reactive-streams-1.0.4-javadoc/",
 			"https://r2dbc.io/spec/1.0.0.RELEASE/api/",
 			"https://jspecify.dev/docs/api/"

framework-platform/framework-platform.gradle

@@ -19,7 +19,7 @@ dependencies {
 	api(platform("org.eclipse.jetty.ee11:jetty-ee11-bom:12.1.6"))
 	api(platform("org.jetbrains.kotlinx:kotlinx-coroutines-bom:1.10.2"))
 	api(platform("org.jetbrains.kotlinx:kotlinx-serialization-bom:1.9.0"))
-	api(platform("org.junit:junit-bom:6.0.2"))
+	api(platform("org.junit:junit-bom:6.0.3"))
 	api(platform("org.mockito:mockito-bom:5.21.0"))
 	api(platform("tools.jackson:jackson-bom:3.0.4"))