Prep 8.15.2 for release (#2443)

Author: JoshMock

docs/changelog.asciidoc

@@ -1,6 +1,17 @@
 [[changelog-client]]
 == Release notes
 
+[discrete]
+=== 8.15.2
+
+[discrete]
+==== Features
+
+[discrete]
+===== Improved support for Elasticsearch `v8.15`
+
+Updated TypeScript types based on fixes and improvements to the Elasticsearch specification.
+
 [discrete]
 === 8.15.1
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@elastic/elasticsearch",
-  "version": "8.15.1",
-  "versionCanary": "8.15.1-canary.0",
+  "version": "8.15.2",
+  "versionCanary": "8.15.2-canary.0",
   "description": "The official Elasticsearch client for Node.js",
   "main": "index.js",
   "types": "index.d.ts",