Set version to 8.12.0 (#2108)

Author: JoshMock

.buildkite/pipeline.yml

@@ -6,7 +6,7 @@ steps:
     env:
       NODE_VERSION: "{{ matrix.nodejs }}"
       TEST_SUITE: "{{ matrix.suite }}"
-      STACK_VERSION: 8.10.3-SNAPSHOT
+      STACK_VERSION: 8.12.0-SNAPSHOT
     matrix:
       setup:
         suite:

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@elastic/elasticsearch",
-  "version": "8.11.0",
-  "versionCanary": "8.11.0-canary.0",
+  "version": "8.12.0",
+  "versionCanary": "8.12.0-canary.0",
   "description": "The official Elasticsearch client for Node.js",
   "main": "index.js",
   "types": "index.d.ts",