change underlying binding from simple-logging to log4j

Signed-off-by: Gilian Rehm <g_rehm@ich-habe-fertig.com>

Author: Gr33ndev

pom.xml

@@ -96,9 +96,15 @@
     	<version>2.0.7</version>
     </dependency>
     <dependency>
-    	<groupId>org.slf4j</groupId>
-    	<artifactId>slf4j-simple</artifactId>
-    	<version>2.0.7</version>
+    	<groupId>org.apache.logging.log4j</groupId>
+    	<artifactId>log4j-slf4j2-impl</artifactId>
+    	<version>2.20.0</version>
+    	<exclusions>
+    	    <exclusion>
+			    <groupId>org.slf4j</groupId>
+			    <artifactId>slf4j-api</artifactId>
+		    </exclusion>
+		</exclusions>
     </dependency>
     <dependency>
     	<groupId>org.apache.commons</groupId>