Update dependency canvas to v2.11.0

Author: renovate[bot]

package.json

@@ -8,7 +8,7 @@
     "devStart": "nodemon src/index.js"
   },
   "dependencies": {
-    "canvas": "2.10.2",
+    "canvas": "2.11.0",
     "canvas-constructor": "5.0.2",
     "cookie-parser": "1.4.6",
     "discord.js": "13.12.0",