Upgraded to Log4j 2.20.0

Author: musketyr

gradle.properties

@@ -58,7 +58,7 @@ groovy.version = 2.5.14
 grails.version = 4.0.10
 aws.sdk.version = 1.12.311
 aws.sdk.v2.version = 2.16.63
-log4j.version = 2.19.0
+log4j.version = 2.20.0
 testcontainers.version = 1.15.3
 jackson.version = 2.12.3