fix sintax

open/gcube-5.13.1.yaml

@@ -4,15 +4,15 @@ gCube_release:
   Version: 5.13.1
   Components:
 
-    Core:
-      - name: gcat-api
-        version: 2.3.0
-      - name: common-gcube-calls
-        version: 1.3.1
+     Core:
+       - name: gcat-api
+         version: 2.3.0
+       - name: common-gcube-calls
+         version: 1.3.1
 
-    ClientLibraries:
-      - name: gcat-client
-        version: 2.3.0
+     ClientLibraries:
+       - name: gcat-client
+         version: 2.3.0
 
      Libraries:
       - name: uri-resolver-manager
@@ -26,7 +26,7 @@ gCube_release:
       - name: catalogue-util-library
         version: 1.2.0
 
-      Services:
+     Services:
        - name: gcat
          version: 2.4.0
        - name: social-networking-library-ws