Bump junit-vintage-engine from 5.5.2 to 5.6.0

Bumps [junit-vintage-engine](https://github.com/junit-team/junit5) from 5.5.2 to 5.6.0.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.5.2...r5.6.0)

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

build.gradle

@@ -208,7 +208,7 @@ dependencies {
 
     testCompile 'io.github.classgraph:classgraph:4.8.60'
     testImplementation 'org.junit.jupiter:junit-jupiter:5.5.2'
-    testRuntimeOnly 'org.junit.vintage:junit-vintage-engine:5.5.2'
+    testRuntimeOnly 'org.junit.vintage:junit-vintage-engine:5.6.0'
     testCompile 'org.junit.platform:junit-platform-launcher:1.5.2'
 
     testCompile 'net.bytebuddy:byte-buddy-parent:1.10.6'