Fix knowledgebase stations schema

schemas/data-ingress/knowledgebase/kb-stations.json

@@ -29,9 +29,12 @@
             "type": "array",
             "additionalItems": false,
             "items": {
-                "station": {
                 "type": "object",
-                    "required": ["c", "l", "o"],
+                "required": [
+                    "c",
+                    "l",
+                    "o"
+                ],
                 "properties": {
                     "c": {
                         "type": "string",
@@ -118,8 +121,13 @@
                 }
             }
         }
-        }
     },
-    "required": ["service_name", "service_id", "data_type", "data_kind", "sent_timestamp"],
+    "required": [
+        "service_name",
+        "service_id",
+        "data_type",
+        "data_kind",
+        "sent_timestamp"
+    ],
     "additionalProperties": false
 }