chore(deps): update dependency tslib to v2

Author: renovate[bot]

package.json

@@ -61,7 +61,7 @@
     "rimraf": "3.0.2",
     "ts-jest": "25.2.1",
     "ts-node": "8.8.1",
-    "tslib": "1.11.1",
+    "tslib": "2.5.2",
     "typescript": "3.8.3"
   }
 }