bump(fastly-agent-toolkit): d5a80622 → 3b54f757 (#5547)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.claude-plugin/marketplace.json

@@ -1484,7 +1484,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/fastly/fastly-agent-toolkit.git",
-        "sha": "d5a8062287c8f70278f3c94f6198396004a4889f"
+        "sha": "3b54f75784b3a6455ed48e915e5782bcfba369be"
       },
       "homepage": "https://github.com/fastly/fastly-agent-toolkit/blob/main/README.md"
     },