chore: update contributors

Author: achingbrain

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ipfs-unixfs-importer",
-  "version": "0.39.11",
+  "version": "0.40.0",
   "description": "JavaScript implementation of the UnixFs importer used by IPFS",
   "leadMaintainer": "Alex Potsides <alex.potsides@protocol.ai>",
   "main": "src/index.js",
@@ -69,7 +69,6 @@
   "contributors": [
     "Alan Shaw <alan.shaw@protocol.ai>",
     "Alan Shaw <alan@tableflip.io>",
-    "Alex Potsides <alex@achingbrain.net>",
     "Arpit Agarwal <atvanguard@users.noreply.github.com>",
     "Bernard Mordan <bernard@tableflip.io>",
     "Dan Ordille <dordille@gmail.com>",
@@ -86,6 +85,7 @@
     "Richard Schneider <makaretu@gmail.com>",
     "Stephen Whitmore <stephen.whitmore@gmail.com>",
     "Volker Mische <volker.mische@gmail.com>",
+    "achingbrain <alex@achingbrain.net>",
     "greenkeeper[bot] <greenkeeper[bot]@users.noreply.github.com>",
     "jbenet <juan@benet.ai>",
     "nginnever <ginneversource@gmail.com>",