ASM 7.3 Upgrade

[yschimke]

Trying to work ASM upgrade through the system (to the gradle plugin) as a potential fix for

#70

[yschimke]

$ mvn test
...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for Animal Sniffer 1.19-SNAPSHOT:
[INFO]
[INFO] Animal Sniffer ..................................... SUCCESS [  0.295 s]
[INFO] Java boot classpath detector ....................... SUCCESS [  0.403 s]
[INFO] Animal Sniffer Annotations ......................... SUCCESS [  0.028 s]
[INFO] Animal Sniffer ..................................... SUCCESS [  0.835 s]
[INFO] Animal Sniffer Maven Plugin ........................ SUCCESS [  7.441 s]
[INFO] Animal Sniffer Maven Enforcer Rule ................. SUCCESS [  0.212 s]
[INFO] Animal Sniffer Ant Tasks ........................... SUCCESS [  0.704 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  10.082 s
[INFO] Finished at: 2020-02-23T08:39:43Z
[INFO] ------------------------------------------------------------------------