docs: docs for next release (#13621)

* docs: docs for next release

* changes to opentelemetry dependencies

* document plugin env variables

* document admin changes

* fix vale error

* add version notes

* document campaign budget updates

* document campaign changes in user guide

* document chages in cluster mode cli

* documented once promotion allocation

* document multiple API keys support

www/apps/book/generated/sidebar.mjs

@@ -1290,9 +1290,9 @@ export const generatedSidebars = [
             "isPathHref": true,
             "type": "link",
             "path": "/learn/production/worker-mode",
-            "title": "Worker Mode",
+            "title": "Worker Modes",
             "children": [],
-            "chapterTitle": "8.2. Worker Mode",
+            "chapterTitle": "8.2. Worker Modes",
             "number": "8.2."
           },
           {
@@ -1345,6 +1345,27 @@ export const generatedSidebars = [
             "children": [],
             "chapterTitle": "9.2. Release Notes",
             "number": "9.2."
+          },
+          {
+            "loaded": true,
+            "isPathHref": true,
+            "type": "link",
+            "path": "/learn/codemods",
+            "title": "Codemods",
+            "children": [
+              {
+                "loaded": true,
+                "isPathHref": true,
+                "type": "link",
+                "title": "Replace Imports (v2.11.0+)",
+                "path": "/learn/codemods/replace-imports",
+                "children": [],
+                "chapterTitle": "9.3.1. Replace Imports (v2.11.0+)",
+                "number": "9.3.1."
+              }
+            ],
+            "chapterTitle": "9.3. Codemods",
+            "number": "9.3."
           }
         ],
         "chapterTitle": "9. Upgrade",