update tslib to version 1.11.1

Author: tiagoschenkel

package.json

@@ -72,7 +72,7 @@
     "lib": "./lib"
   },
   "dependencies": {
-    "tslib": "^1.10.0"
+    "tslib": "^1.11.1"
   },
   "devDependencies": {
     "@istanbuljs/nyc-config-typescript": "^1.0.1",