Update 7.9 rest specs and regenerate client

Author: russcam

src/ApiGenerator/RestSpecification/Core/clear_scroll.json

@@ -1,7 +1,7 @@
 {
   "clear_scroll":{
     "documentation":{
-      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/search-request-body.html#_clear_scroll_api",
+      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/current/clear-scroll-api.html",
       "description":"Explicitly clears the search context for a scroll."
     },
     "stability":"stable",

src/ApiGenerator/RestSpecification/Core/indices.add_block.json

@@ -1,7 +1,7 @@
 {
   "indices.add_block":{
     "documentation":{
-      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-blocks.html",
+      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/index-modules-blocks.html",
       "description":"Adds a block to an index."
     },
     "stability":"stable",

src/ApiGenerator/RestSpecification/Core/indices.resolve_index.json

@@ -1,7 +1,7 @@
 {
   "indices.resolve_index":{
     "documentation":{
-      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-resolve-index.html",
+      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-resolve-index-api.html",
       "description":"Returns information about any matching indices, aliases, and data streams"
     },
     "stability":"experimental",

src/ApiGenerator/RestSpecification/Core/root.html

@@ -2,9 +2,9 @@
   "indices.create_data_stream":{
     "documentation":{
       "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/data-streams.html",
-      "description":"Creates or updates a data stream"
+      "description":"Creates a data stream"
     },
-    "stability":"experimental",
+    "stability":"stable",
     "url":{
       "paths":[
         {
@@ -22,9 +22,6 @@
       ]
     },
     "params":{
-    },
-    "body":{
-      "description":"The data stream definition"
     }
   }
 }

src/ApiGenerator/RestSpecification/XPack/indices.create_data_stream.json

@@ -4,7 +4,7 @@
       "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/data-streams.html",
       "description":"Provides statistics on operations happening in a data stream."
     },
-    "stability":"experimental",
+    "stability":"stable",
     "url":{
       "paths":[
         {

src/ApiGenerator/RestSpecification/XPack/indices.data_streams_stats.json

@@ -4,7 +4,7 @@
       "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/data-streams.html",
       "description":"Deletes a data stream."
     },
-    "stability":"experimental",
+    "stability":"stable",
     "url":{
       "paths":[
         {

src/ApiGenerator/RestSpecification/XPack/indices.delete_data_stream.json

@@ -4,7 +4,7 @@
       "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/data-streams.html",
       "description":"Returns data streams."
     },
-    "stability":"experimental",
+    "stability":"stable",
     "url":{
       "paths":[
         {

src/ApiGenerator/RestSpecification/XPack/indices.get_data_stream.json

@@ -24,7 +24,7 @@
 // ReSharper disable once CheckNamespace
 namespace Elasticsearch.Net.Specification.IndicesApi
 {
-	///<summary>Request options for AddBlock <para>https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-blocks.html</para></summary>
+	///<summary>Request options for AddBlock <para>https://www.elastic.co/guide/en/elasticsearch/reference/master/index-modules-blocks.html</para></summary>
 	public class AddIndexBlockRequestParameters : RequestParameters<AddIndexBlockRequestParameters>
 	{
 		public override HttpMethod DefaultHttpMethod => HttpMethod.PUT;
@@ -262,7 +262,7 @@ public string WaitForActiveShards
 	public class CreateDataStreamRequestParameters : RequestParameters<CreateDataStreamRequestParameters>
 	{
 		public override HttpMethod DefaultHttpMethod => HttpMethod.PUT;
-		public override bool SupportsBody => true;
+		public override bool SupportsBody => false;
 	}
 
 	///<summary>Request options for DataStreamsStats <para>https://www.elastic.co/guide/en/elasticsearch/reference/master/data-streams.html</para></summary>
@@ -1403,7 +1403,7 @@ public bool? IgnoreUnavailable
 		}
 	}
 
-	///<summary>Request options for Resolve <para>https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-resolve-index.html</para></summary>
+	///<summary>Request options for Resolve <para>https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-resolve-index-api.html</para></summary>
 	public class ResolveIndexRequestParameters : RequestParameters<ResolveIndexRequestParameters>
 	{
 		public override HttpMethod DefaultHttpMethod => HttpMethod.GET;