fix(workflow): refresh learning hub updater lock (#2841)

Regenerate the agentic workflow with gh-aw v0.86.2 so the Copilot CLI is resolved from PATH and staged in the runner temp directory.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 5135482d-49dc-4ff7-a2e8-c086ea1eeae4

.github/aw/actions-lock.json

@@ -20,15 +20,10 @@
       "version": "v7.0.1",
       "sha": "043fb46d1a93c77aae656e7c1c64a875d1fc6a0a"
     },
-    "github/gh-aw-actions/setup-cli@v0.84.3": {
+    "github/gh-aw-actions/setup@v0.86.2": {
-      "repo": "github/gh-aw-actions/setup-cli",
-      "version": "v0.84.3",
-      "sha": "c863074b673419603d146aab585e2986ef08deec"
-    },
-    "github/gh-aw-actions/setup@v0.84.3": {
       "repo": "github/gh-aw-actions/setup",
-      "version": "v0.84.3",
+      "version": "v0.86.2",
-      "sha": "c863074b673419603d146aab585e2986ef08deec"
+      "sha": "6aab9e5b5c91c615506061f09bedd81a23babe3c"
     }
   },
   "containers": {