chore(deps): update yarn to v1.21.1

renovate-bot · renovate[bot] · commit 374bbc227e36 · 2019-12-11T13:59:15.000Z
diff --git a/package.json b/package.json
@@ -159,6 +159,6 @@
   },
   "volta": {
     "node": "10.17.0",
-    "yarn": "1.21.0"
+    "yarn": "1.21.1"
   }
 }
