Build(deps): Bump tslib from 2.3.1 to 2.4.0 (#2540)

Bumps [tslib](https://github.com/Microsoft/tslib) from 2.3.1 to 2.4.0.
- [Release notes](https://github.com/Microsoft/tslib/releases)
- [Commits](https://github.com/Microsoft/tslib/compare/2.3.1...2.4.0)

---
updated-dependencies:
- dependency-name: tslib
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package-lock.json

@@ -18272,9 +18272,9 @@
       }
     },
     "tslib": {
-      "version": "2.3.1",
+      "version": "2.4.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.1.tgz",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
-      "integrity": "sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw=="
+      "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
     },
     "tslint": {
       "version": "6.1.3",

package.json

@@ -53,7 +53,7 @@
     "moment-es6": "1.0.0",
     "pdfjs-dist": "2.5.207",
     "rxjs": "^6.6.3",
-    "tslib": "^2.3.1",
+    "tslib": "^2.4.0",
     "zone.js": "~0.10.2"
   },
   "devDependencies": {