Update pom.xml

log4 version changed to 2.17(due to log4shell)

Author: dstar55

pom.xml

@@ -30,7 +30,7 @@
 
     <properties>
         <start-class>com.dockerforjavadevelopers.hello.Application</start-class>
-		<log4j2.version>2.15.0</log4j2.version>
+		<log4j2.version>2.17.0</log4j2.version>
     </properties>
 
     <build>