Increase memory to 3.75G to avoid OOM

Author: ashawley

Diff for: admin/build.sh

@@ -22,4 +22,4 @@ if [[ "$TRAVIS_TAG" =~ ^v[0-9]+\.[0-9]+\.[0-9]+(-[A-Za-z0-9-]+)? ]]; then
   openssl aes-256-cbc -K $K -iv $IV -in admin/secring.asc.enc -out admin/secring.asc -d
 fi
 
-sbt "$publishVersion" clean update +test +publishLocal $extraTarget
+sbt -J-Xmx3840M "$publishVersion" clean update +test +publishLocal $extraTarget