fix(deps): update dependency org.junit.jupiter:junit-jupiter to v6 (#171)

Author: TheMeinerLP

settings.gradle.kts

@@ -36,7 +36,7 @@ dependencyResolutionManagement {
             version("jakarta-inject", "2.0.1")
 
             // Testing dependencies
-            version("junit", "5.13.4")
+            version("junit", "6.0.0")
             version("mockito", "5.19.0")
             version("mockbukkit", "3.133.2")
             version("assertj", "3.27.6")