clone 3d_armor mod for integration test

integration-test.sh

@@ -4,11 +4,15 @@
 CFG=/tmp/minetest.conf
 MTDIR=/tmp/mt
 WORLDDIR=${MTDIR}/worlds/world
+WORLDMODDIR=${WORLDDIR}/worldmods
 
 cat <<EOF > ${CFG}
  technic_armor.enable_technic_armor_integration_test = true
 EOF
 
+# clone dependencies
+git clone --depth 1 https://github.com/minetest-mods/3d_armor.git ${WORLDMODDIR}/3d_armor
+
 mkdir -p ${WORLDDIR}
 chmod 777 ${MTDIR} -R
 docker run --rm -i \