bump(aws-agents): 851e0346 → 5bf16f7b (#4828)

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

.claude-plugin/marketplace.json

@@ -353,7 +353,7 @@
         "url": "https://github.com/aws/agent-toolkit-for-aws.git",
         "path": "plugins/aws-agents",
         "ref": "main",
-        "sha": "851e0346e51c10afc96f1fb1c167a8a55134df79"
+        "sha": "5bf16f7b56b4723f5fdc0f90c1901ffaba8d693a"
       },
       "homepage": "https://github.com/aws/agent-toolkit-for-aws"
     },