Merge pull request #5098 from JabRef/dependabot/gradle/org.apache.logging.log4j-log4j-jul-2.12.0

Bump log4j-jul from 2.11.2 to 2.12.0

Author: Siedlerchr

build.gradle

@@ -162,7 +162,7 @@ dependencies {
     testCompile 'org.junit.platform:junit-platform-launcher:1.4.2'
 
     testRuntime 'org.apache.logging.log4j:log4j-core:2.11.1'
-    testRuntime 'org.apache.logging.log4j:log4j-jul:2.11.2'
+    testRuntime 'org.apache.logging.log4j:log4j-jul:2.12.0'
     testCompile 'org.mockito:mockito-core:2.28.2'
     testCompile 'com.github.tomakehurst:wiremock:2.23.2'
     testCompile 'org.reflections:reflections:0.9.11'