Improve inventory to make deployment targets definable

Change-Id: Ib83479773b8a8024c40c0dac36ded2b0ff2747c4
diff --git a/list-dereko-korap-release.yml b/list-dereko-korap-release.yml
index 4bbffb6..f78c6a3 100644
--- a/list-dereko-korap-release.yml
+++ b/list-dereko-korap-release.yml
@@ -1,6 +1,6 @@
 - name: List DeReKo-KorAP Releases
-  hosts: 10.0.10.55
-  user: korap
+  hosts: worker-03
+  run_once: true
   tasks:
     - name: Get current year
       set_fact: