Update pom.xml

Author: f11h

pom.xml

@@ -38,7 +38,7 @@
         <dgc.lib.version>1.1.6</dgc.lib.version>
 		<sap.cloud.sdk.version>3.57.0</sap.cloud.sdk.version>
 		<slf4j.version>1.7.32</slf4j.version>
-        <log4j2.version>2.15.0</log4j2.version>
+        <log4j2.version>2.16.0</log4j2.version>
         <!-- plugins -->
         <plugin.checkstyle.version>3.1.2</plugin.checkstyle.version>
         <plugin.sonar.version>3.9.0.2155</plugin.sonar.version>