FIX: Try fix promotion script error

Removed publish-samples dependency from promotion script. As a side effect, this should also fix the error from Yamato "Error in 'name'. Value is missing"

Author: andrew-oc

.yamato/promotion.yml

@@ -16,6 +16,4 @@ promote:
   artifacts:
     artifacts:
       paths:
-        - "upm-ci~/**/*"
-  dependencies:
-    - .yamato/publish-samples.yml
+        - "upm-ci~/**/*"