Update OpenAPI specs

Author: jpraynaud

openapi.yaml

@@ -112,9 +112,7 @@ paths:
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: "#/components/schemas/Snapshot"
+                $ref: "#/components/schemas/SnapshotListMessage"
         "412":
           description: API version mismatch
         default:
@@ -613,6 +611,12 @@ components:
           "genesis_signature": "",
         }
 
+    SnapshotListMessage:
+      description: SnapshotListMessage represents a list of snapshots
+      type: array
+      items:
+        $ref: "#/components/schemas/Snapshot"
+
     Snapshot:
       description: Snapshot represents a snapshot file and its metadata
       type: object