bump(shopify-ai-toolkit): 6980909f → 556811e9 (#4171)

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

.claude-plugin/marketplace.json

@@ -2926,7 +2926,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/Shopify/Shopify-AI-Toolkit.git",
-        "sha": "6980909f2e0eaaf59b4801077fe7e3731bad1b71"
+        "sha": "556811e94dd45c795abe5c0b1bf6b5a4b098149d"
       },
       "homepage": "https://shopify.dev"
     },