Add new redirect for January cumulative update preview (#51711)

Author: gewarren

.openpublishing.redirection.framework.json

@@ -2023,6 +2023,11 @@
             "redirect_url": "/dotnet/framework/release-notes/2024/04-09-april-security-and-quality-rollup",
             "redirect_document_id": true
         },
+        {
+            "source_path_from_root": "/docs/framework/release-notes/2026/01-29-october-cumulative-update-preview.md",
+            "redirect_url": "/dotnet/framework/release-notes/2026/01-29-january-cumulative-update-preview",
+            "redirect_document_id": true
+        },
         {
             "source_path_from_root": "/docs/framework/resources/creating-resource-files-for-desktop-apps.md",
             "redirect_url": "/dotnet/core/extensions/create-resource-files",