[7.x] json spec - add description for autoscaling (#55748) (#55901)

x-pack/plugin/build.gradle

@@ -157,9 +157,6 @@ testClusters.integTest {
 }
 
 validateRestSpec {
-  ignore 'autoscaling.delete_autoscaling_policy.json'
-  ignore 'autoscaling.get_autoscaling_policy.json'
-  ignore 'autoscaling.put_autoscaling_policy.json'
   ignore 'ml.validate.json'
   ignore 'ml.validate_detector.json'
 }

x-pack/plugin/src/test/resources/rest-api-spec/api/autoscaling.delete_autoscaling_policy.json

@@ -1,7 +1,8 @@
 {
   "autoscaling.delete_autoscaling_policy":{
     "documentation":{
-      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/current/autoscaling-delete-autoscaling-policy.html"
+      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/current/autoscaling-delete-autoscaling-policy.html",
+      "description":"Deletes an autoscaling policy."
     },
     "stability":"experimental",
     "url":{

x-pack/plugin/src/test/resources/rest-api-spec/api/autoscaling.get_autoscaling_policy.json

@@ -1,7 +1,8 @@
 {
   "autoscaling.get_autoscaling_policy":{
     "documentation":{
-      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/current/autoscaling-get-autoscaling-policy.html"
+      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/current/autoscaling-get-autoscaling-policy.html",
+      "description": "Retrieves an autoscaling policy."
     },
     "stability":"experimental",
     "url":{

x-pack/plugin/src/test/resources/rest-api-spec/api/autoscaling.put_autoscaling_policy.json

@@ -1,7 +1,8 @@
 {
   "autoscaling.put_autoscaling_policy":{
     "documentation":{
-      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/current/autoscaling-put-autoscaling-policy.html"
+      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/current/autoscaling-put-autoscaling-policy.html",
+      "description": "Creates a new autoscaling policy."
     },
     "stability":"experimental",
     "url":{