chore: downgrade junit to 5.11.4

property-guard-spring-boot-starter/build.gradle.kts

@@ -60,7 +60,8 @@ dependencies {
     implementation(libs.spring.boot.starter.logging)
     implementation(libs.spring.boot.configuration.processor)
 
-    testImplementation(libs.junit)
+    testImplementation(platform(libs.junit.bom))
+    testImplementation(libs.junit.jupiter)
     testImplementation(libs.spring.boot.starter.test)
 }