Update to org.aspectj 1.9.6

Closes gh-9076

gradle/dependency-management.gradle

@@ -140,9 +140,9 @@ dependencyManagement {
 		dependency 'org.apache.tomcat.embed:tomcat-embed-logging-log4j:8.0.44'
 		dependency 'org.apache.tomcat.embed:tomcat-embed-websocket:8.5.23'
 		dependency 'org.apache.tomcat:tomcat-annotations-api:8.5.23'
-		dependency 'org.aspectj:aspectjrt:1.9.5'
-		dependency 'org.aspectj:aspectjtools:1.9.5'
-		dependency 'org.aspectj:aspectjweaver:1.9.5'
+		dependency 'org.aspectj:aspectjrt:1.9.6'
+		dependency 'org.aspectj:aspectjtools:1.9.6'
+		dependency 'org.aspectj:aspectjweaver:1.9.6'
 		dependency 'org.assertj:assertj-core:3.11.1'
 		dependency 'org.attoparser:attoparser:2.0.4.RELEASE'
 		dependency 'org.bouncycastle:bcpkix-jdk15on:1.64'