update org.activiti:activiti-core-dependencies to 7.0.43 (#37)
update org.activiti:activiti-core-dependencies to 7.0.43 (#37)

[UpdateBot](https://github.com/jenkins-x/updatebot) pushed maven dependency: `org.activiti:activiti-core-dependencies` to: `7.0.43`
Activiti/Activiti,Activiti/Activiti