Update upgrade-agent plugin to 1.1.685

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a1d06025-028b-4ab2-9dae-2c5c4273a4bb

.github/plugin/marketplace.json

@@ -2316,7 +2316,7 @@
     {
       "name": "upgrade-agent",
       "description": "AI-powered upgrade assistant for upgrading and migrating applications. Helps modernize legacy code and upgrade .NET applications to current frameworks.",
-      "version": "1.1.652",
+      "version": "1.1.685",
       "author": {
         "name": "Microsoft",
         "url": "https://www.microsoft.com"
@@ -2335,8 +2335,8 @@
         "source": "github",
         "repo": "microsoft/upgrade-agent-plugins",
         "path": "plugins/upgrade-agent",
-        "ref": "v1.1.652",
-        "sha": "f2f23675833495ecee9858cb4ce7b089fe9cf491"
+        "ref": "v1.1.685",
+        "sha": "90c7fe3beb38660a266685a417b6ff75300abe9b"
       }
     },
     {