bump(fastly-agent-toolkit): 9a273f0b → 6351c84a (#3686)

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

.claude-plugin/marketplace.json

@@ -1277,7 +1277,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/fastly/fastly-agent-toolkit.git",
-        "sha": "9a273f0b2f7a496355b6ec30c1b34614a80bf805"
+        "sha": "6351c84a5747eeb56111181a6babae6d78880092"
       },
       "homepage": "https://github.com/fastly/fastly-agent-toolkit/blob/main/README.md"
     },