Bump terser from 3.17.0 to 4.8.1

Bumps [terser](https://github.com/terser/terser) from 3.17.0 to 4.8.1.
- [Release notes](https://github.com/terser/terser/releases)
- [Changelog](https://github.com/terser/terser/blob/master/CHANGELOG.md)
- [Commits](https://github.com/terser/terser/commits)

---
updated-dependencies:
- dependency-name: terser
  dependency-type: direct:production
...

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

package.json

@@ -91,7 +91,7 @@
     "sass-loader": "7.1.0",
     "style-loader": "0.23.0",
     "tc-auth-lib": "topcoder-platform/tc-auth-lib#1.0.4",
-    "terser": "^3.16.1",
+    "terser": "^4.8.1",
     "terser-webpack-plugin": "1.1.0",
     "topcoder-healthcheck-dropin": "^1.0.3",
     "topcoder-react-lib": "^1.2.10",