Use custom Eris fork for sticker support

package-lock.json

@@ -1396,9 +1396,8 @@
       "integrity": "sha512-6u0VYSCo/OW6IoD5WCLLy9JUGARbamfSavcNXry/eu8aHVFei6CD3Sw+VGX5alea1i9pgPHW0mbu6Xj0uBh7gA=="
     },
     "eris": {
-      "version": "0.13.3",
-      "resolved": "https://registry.npmjs.org/eris/-/eris-0.13.3.tgz",
-      "integrity": "sha512-WBtLyknOWZpYZL9yPhez0oKUWvYpunSg43hGxawwjwSf3gFXmbEPYrT8KlmZXtpJnX16eQ7mzIq+MgSh3LarEg==",
+      "version": "github:dragory/eris#9c1935b31a1c2972861464b54bb382a165674b93",
+      "from": "github:dragory/eris#stickers",
       "requires": {
         "opusscript": "^0.0.7",
         "tweetnacl": "^1.0.1",

package.json

@@ -21,7 +21,7 @@
   },
   "dependencies": {
     "ajv": "^6.12.4",
-    "eris": "^0.13.3",
+    "eris": "github:dragory/eris#stickers",
     "express": "^4.17.1",
     "helmet": "^4.1.1",
     "humanize-duration": "^3.23.1",