build.gradle: fix dependency bug
build.gradle: fix dependency bug

We need org.slf4j at COMPILE time, not RUNTIME.

Signed-off-by: Daniel Halperin <1a02732a15f637c31107256cbee5819e36aa7c67@cs.washington.edu>

uwescience/myria,bsalimi/myria,uwescience/myria,bsalimi/myria,uwescience/myria,jamesmarva/myria,jamesmarva/myria,jamesmarva/myria,bsalimi/myria