Add 2.12 version (#6451)

Signed-off-by: Fanit Kolchina <kolchfa@amazon.com>

_config.yml

@@ -5,10 +5,10 @@ baseurl: "/docs/latest" # the subpath of your site, e.g. /blog
 url: "https://opensearch.org" # the base hostname & protocol for your site, e.g. http://example.com
 permalink: /:path/
 
-opensearch_version: '2.11.1'
-opensearch_dashboards_version: '2.11.1'
-opensearch_major_minor_version: '2.11'
-lucene_version: '9_7_0'
+opensearch_version: '2.12.0'
+opensearch_dashboards_version: '2.12.0'
+opensearch_major_minor_version: '2.12'
+lucene_version: '9_9_2'
 
 # Build settings
 markdown: kramdown

_data/versions.json

@@ -1,10 +1,11 @@
 {
-  "current": "2.11",
+  "current": "2.12",
   "all": [
-    "2.11",
+    "2.12",
     "1.3"
   ],
   "archived": [
+    "2.11",
     "2.10",
     "2.9",
     "2.8",
@@ -20,7 +21,7 @@
     "1.1",
     "1.0"
     ],
-  "latest": "2.11"
+  "latest": "2.12"
 }