Create symbolic link to .ivy2 instead of using sbt argument

Author: OlivierBlanvillain

.drone.yml

@@ -4,8 +4,9 @@ pipeline:
     pull: true
     commands:
       - ln -s /var/cache/drone/scala-scala scala-scala
+      - ln -s /var/cache/drone/ivy2 "$HOME/.ivy2"
       - ./scripts/update-scala-library
-      - sbt -J-Xmx4096m -J-XX:ReservedCodeCacheSize=512m -J-XX:MaxMetaspaceSize=1024m -Ddotty.drone.mem=4096m -ivy /var/cache/drone/ivy2 "${TEST}"
+      - sbt -J-Xmx4096m -J-XX:ReservedCodeCacheSize=512m -J-XX:MaxMetaspaceSize=1024m -Ddotty.drone.mem=4096m "${TEST}"
     when:
       branch:
         exclude: gh-pages