FIX: YAML error in Yamata config.

Author: andrew-oc

.yamato/promotion.yml

@@ -1,5 +1,3 @@
-{% metadata_file .yamato/config.metadata %}
----
 promote:
   name: Promote to Production
   agent:
@@ -13,7 +11,7 @@ promote:
     - mv ./Assets/Samples.meta ./Packages/com.unity.inputsystem
     - npm install upm-ci-utils@stable -g --registry https://artifactory.prd.cds.internal.unity3d.com/artifactory/api/npm/upm-npm
     - upm-ci package pack --package-path ./Packages/com.unity.inputsystem/
-	- upm-ci package test --package-path ./Packages/com.unity.inputsystem/ -u 2019.4
+    - upm-ci package test --package-path ./Packages/com.unity.inputsystem/ -u 2019.4
     - upm-ci package promote --package-path ./Packages/com.unity.inputsystem/
   artifacts:
     artifacts: