Test launcher: mount volumes in correct path

The current path where the one from the docker server, not
the container. I noticed the issue when I realized the resulting
volumes was always empty.

Change-Id: I52eb78bc21bec47cbb279db629efa349362de7fe
diff --git a/jenkins/test/test.sh b/jenkins/test/test.sh
index 5dba310..7a5dcbf 100755
--- a/jenkins/test/test.sh
+++ b/jenkins/test/test.sh
@@ -39,10 +39,10 @@
       PORT="${OPTARG}"
       ;;
     h)
-      VOLUMES=(-v "${OPTARG}:/volumes/jenkins_home")
+      VOLUMES=(-v "${OPTARG}:/var/jenkins_home")
       ;;
     s)
-      VOLUMES=(-v "${OPTARG}:/volumes/secrets")
+      VOLUMES=(-v "${OPTARG}:/opt/secrets")
       ;;
     *)
       echo "Usage: $0 [-p <port>] [-s </volumes/secrets>] [-h </volumes/jenkins_home>]" >&2