chore: update contributors

Author: vmx

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ipfs-block-service",
-  "version": "0.15.1",
+  "version": "0.15.2",
   "description": "JavaScript Implementation of BlockService",
   "leadMaintainer": "Volker Mische <volker.mische@gmail.com>",
   "main": "src/index.js",
@@ -52,6 +52,7 @@
     "David Dias <daviddias.p@gmail.com>",
     "Friedel Ziegelmayer <dignifiedquire@gmail.com>",
     "Greenkeeper <support@greenkeeper.io>",
+    "Pedro Santos <pedro.santos@moxy.studio>",
     "Pedro Teixeira <i@pgte.me>",
     "Richard Littauer <richard.littauer@gmail.com>",
     "Richard Schneider <makaretu@gmail.com>",