Update dependency tslib to v2.3.0

Author: renovate-bot

search-extensibility-library/package-lock.json

@@ -37,7 +37,7 @@
     "@types/es6-promise": "0.0.33",
     "@types/react-dom": "16.9.14",
     "@types/react": "16.14.11",
-    "tslib": "2.0.3",
+    "tslib": "2.3.0",
     "gulp": "4.0.2",
     "@types/chai": "4.2.21",
     "@types/mocha": "8.2.3",