fix(package): update multihashing-async to version 0.8.0

greenkeeper[bot] · vmx · commit dc96913dafc3 · 2019-09-12T13:08:05.000+02:00
diff --git a/package.json b/package.json
@@ -28,7 +28,7 @@
     "merkle-patricia-tree": "^3.0.0",
     "multicodec": "~0.5.0",
     "multihashes": "~0.4.12",
-    "multihashing-async": "~0.7.0",
+    "multihashing-async": "~0.8.0",
     "rlp": "^2.0.0"
   },
   "devDependencies": {
