Update .drone.yaml for single tree build

.drone.yml

@@ -2,12 +2,14 @@ pipeline:
   clone:
     image: plugins/git
     tags: true
+    recursive: true
   build:
     image: maven:3.3.9-jdk-8
     commands:
       - curl --fail --create-dirs -o $HOME/.gradle/init.d/mirror.gradle https://maven.johni0702.de/config/gradle
       - git config --global user.email "replaymod@drone" && git config --global user.name "Drone"
-      - SIGNED_JAR=$(! git describe --exact 2>&1 > /dev/null; echo $?) REPRODUCIBLE_BUILD=1 ./gradlew :build
+      - SIGNED_JAR=$(! git describe --exact 2>&1 > /dev/null; echo $?) REPRODUCIBLE_BUILD=1 ./gradlew $(bash -c "echo :versions:{1.8,1.8.9,1.9.4,1.10.2,1.11,1.11.2,1.12,1.12.1,1.12.2}:reobfJar") --parallel
+      - mkdir -p build/libs && mv versions/*/build/libs/* build/libs/
   archive:
     image: plugins/s3
     acl: public-read