[SEBA-497] Release tag an alpine-based image

Change-Id: If536e9c284244a3ab86f6f29f4a2717843c2f8c9
diff --git a/VERSION b/VERSION
index 625610e..3a3cd8c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.1-dev
+1.3.1