[GOBBLIN-1004] Downgrade Helix version at compile time to fix slf4j dependency
[GOBBLIN-1004] Downgrade Helix version at compile time to fix slf4j dependency

Closes #2850 from Will-Lo/downgrade-helix-to-fix-
slf4j

linkedin/gobblin,shirshanka/gobblin,arjun4084346/gobblin,shirshanka/gobblin,arjun4084346/gobblin,jack-moseley/gobblin,arjun4084346/gobblin,abti/gobblin,abti/gobblin,linkedin/gobblin,abti/gobblin,jack-moseley/gobblin,shirshanka/gobblin,jack-moseley/gobblin,abti/gobblin,shirshanka/gobblin,shirshanka/gobblin,arjun4084346/gobblin,jack-moseley/gobblin,abti/gobblin,linkedin/gobblin,arjun4084346/gobblin,abti/gobblin,linkedin/gobblin,linkedin/gobblin,jack-moseley/gobblin,linkedin/gobblin