chore(deps): update dependency org.junit:junit-bom to v6 (#13)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

build.gradle

@@ -42,7 +42,7 @@ dependencies {
     implementation 'org.yaml:snakeyaml:2.5'
 
     // Testing - JUnit BOM for version management
-    testImplementation platform('org.junit:junit-bom:5.14.3')
+    testImplementation platform('org.junit:junit-bom:6.0.3')
     testImplementation 'org.junit.jupiter:junit-jupiter-api'
     testImplementation 'org.junit.jupiter:junit-jupiter-params'
     testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine'