fix: add buffer (#217)

Author: hugomrdias

package.json

@@ -62,6 +62,7 @@
     "@hapi/hapi": "^18.4.0",
     "@hapi/inert": "^5.2.2",
     "abortable-iterator": "^3.0.0",
+    "buffer": "^5.6.0",
     "class-is": "^1.1.0",
     "debug": "^4.1.1",
     "err-code": "^2.0.0",

src/socket-to-conn.js

@@ -2,7 +2,7 @@
 
 const abortable = require('abortable-iterator')
 const toIterable = require('stream-to-it')
-
+const { Buffer } = require('buffer')
 const { CLOSE_TIMEOUT } = require('./constants')
 const toMultiaddr = require('libp2p-utils/src/ip-port-to-multiaddr')