Upgraded dependencies

Author: lnewson

package.json

@@ -22,8 +22,8 @@
     "@ephox/sugar": "^7.0.1"
   },
   "devDependencies": {
-    "@ephox/bedrock-client": "^9.6.1",
-    "@ephox/bedrock-server": "^9.6.3",
+    "@ephox/bedrock-client": "^11.1.1",
+    "@ephox/bedrock-server": "^11.2.0",
     "awesome-typescript-loader": "^5.2.1",
     "fast-check": "^2.2.1",
     "typescript": "^4.0.2",