Fix Broken REST API Spec for Repo Cleanup (#45782)

* Fix Broken REST API Spec for Repo Cleanup

Author: original-brownbear

rest-api-spec/src/main/resources/rest-api-spec/api/snapshot.cleanup_repository.json

@@ -2,25 +2,31 @@
   "snapshot.cleanup_repository": {
     "documentation": "http://www.elastic.co/guide/en/elasticsearch/reference/master/modules-snapshots.html",
     "stability": "stable",
-    "methods": ["POST"],
     "url": {
-      "paths": ["/_snapshot/{repository}/_cleanup"],
-      "parts": {
-        "repository": {
-          "type": "string",
-          "required" : true,
-          "description": "A repository name"
+      "paths": [
+        {
+          "path": "/_snapshot/{repository}/_cleanup",
+          "methods": [
+            "POST"
+          ],
+          "parts": {
+            "repository": {
+              "type": "string",
+              "required" : true,
+              "description": "A repository name"
+            }
+          }
         }
+      ]
+    },
+    "params": {
+      "master_timeout": {
+        "type" : "time",
+        "description" : "Explicit operation timeout for connection to master node"
       },
-      "params": {
-        "master_timeout": {
-          "type" : "time",
-          "description" : "Explicit operation timeout for connection to master node"
-        },
-        "timeout": {
-          "type" : "time",
-          "description" : "Explicit operation timeout"
-        }
+      "timeout": {
+        "type" : "time",
+        "description" : "Explicit operation timeout"
       }
     },
     "body": {}