chore: update contributors

Author: Alan Shaw

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ipfs-http-client",
-  "version": "30.1.4",
+  "version": "31.0.0",
   "description": "A client library for the IPFS HTTP API",
   "leadMaintainer": "Alan Shaw <alan@tableflip.io>",
   "main": "src/index.js",
@@ -122,6 +122,7 @@
     "Harlan T Wood <code@harlantwood.net>",
     "Henrique Dias <hacdias@gmail.com>",
     "Holodisc <holodiscent@gmail.com>",
+    "Hugo Dias <hugomrdias@gmail.com>",
     "Hugo Dias <mail@hugodias.me>",
     "JGAntunes <j.goncalo.antunes@gmail.com>",
     "Jacob Heun <jacobheun@gmail.com>",
@@ -164,9 +165,11 @@
     "Victor Bjelkholm <victor@typeform.com>",
     "Volker Mische <volker.mische@gmail.com>",
     "Zhiyuan Lin <edsgerlin@gmail.com>",
+    "dirkmc <dirkmdev@gmail.com>",
     "dmitriy ryajov <dryajov@dmitriys-MacBook-Pro.local>",
     "elsehow <yes@cosmopol.is>",
     "ethers <ethereum@outlook.com>",
+    "greenkeeper[bot] <greenkeeper[bot]@users.noreply.github.com>",
     "haad <haad@headbanggames.com>",
     "kumavis <kumavis@users.noreply.github.com>",
     "leekt216 <leekt216@gmail.com>",