Packer: set config to work with any clone name (host machine).

util/packer/jenkins_worker.json

@@ -21,11 +21,11 @@
     "inline": ["rm -rf {{user `playbook_remote_dir`}}"]
   }, {
     "type": "file",
-    "source": "../../../configuration/playbooks",
+    "source": "../../playbooks",
     "destination": "{{user `playbook_remote_dir`}}"
   }, {
     "type": "file",
-    "source": "../../../configuration/requirements.txt",
+    "source": "../../requirements.txt",
     "destination": "{{user `playbook_remote_dir`}}/requirements.txt"
   }, {
     "type": "shell",