chore: update contributors

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ipld",
-  "version": "0.19.1",
+  "version": "0.19.2",
   "description": "The JavaScript Implementation of IPLD",
   "leadMaintainer": "Volker Mische <volker.mische@gmail.com>",
   "main": "src/index.js",
@@ -65,8 +65,8 @@
     "pull-traverse": "^1.0.3"
   },
   "contributors": [
+    "Alan Shaw <alan.shaw@protocol.ai>",
     "Alan Shaw <alan@tableflip.io>",
-    "Alex Potsides <alex@achingbrain.net>",
     "David Dias <daviddias.p@gmail.com>",
     "Friedel Ziegelmayer <dignifiedquire@gmail.com>",
     "Henrique Dias <hacdias@gmail.com>",
@@ -78,6 +78,7 @@
     "Richard Littauer <richard.littauer@gmail.com>",
     "Richard Schneider <makaretu@gmail.com>",
     "Volker Mische <volker.mische@gmail.com>",
+    "achingbrain <alex@achingbrain.net>",
     "greenkeeperio-bot <support@greenkeeper.io>",
     "jonkrone <jonathankrone@gmail.com>",
     "kumavis <kumavis@users.noreply.github.com>",