Update dependency @ianwalter/bff to v11

Author: renovate-bot

package.json

@@ -35,7 +35,7 @@
     "url": "https://github.com/ianwalter/cloneable/issues"
   },
   "devDependencies": {
-    "@ianwalter/bff": "^9.9.1",
+    "@ianwalter/bff": "^11.0.0",
     "@ianwalter/eslint-config": "^6.2.0",
     "@ianwalter/release": "^5.0.2",
     "@ianwalter/renovate-config": "^1.4.3",