fix(package): update peer-id to version 0.13.6

Closes #1043

Author: greenkeeper[bot]

package.json

@@ -73,7 +73,7 @@
     "multicodec": "~0.5.1",
     "multihashes": "~0.4.14",
     "parse-duration": "^0.1.1",
-    "peer-id": "~0.12.3",
+    "peer-id": "~0.13.6",
     "peer-info": "~0.15.1",
     "promise-nodeify": "^3.0.1"
   },