bump(fastly-agent-toolkit): 10ceb976 → abb9d42a (#6166)

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

.claude-plugin/marketplace.json

@@ -1498,7 +1498,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/fastly/fastly-agent-toolkit.git",
-        "sha": "10ceb976c690d261bddaf5fd15a37c9d1f510f77"
+        "sha": "abb9d42a5318d67b52b39db9f5b88289ec1567c4"
       },
       "homepage": "https://github.com/fastly/fastly-agent-toolkit/blob/main/README.md"
     },