chore(deps): bump serialize-javascript and terser-webpack-plugin (#2367)

Bumps [serialize-javascript](https://github.com/yahoo/serialize-javascript) to 6.0.2 and updates ancestor dependency [terser-webpack-plugin](https://github.com/webpack-contrib/terser-webpack-plugin). These dependencies need to be updated together.


Updates `serialize-javascript` from 5.0.1 to 6.0.2
- [Release notes](https://github.com/yahoo/serialize-javascript/releases)
- [Commits](yahoo/serialize-javascript@v5.0.1...v6.0.2)

Updates `terser-webpack-plugin` from 4.2.3 to 5.3.11
- [Release notes](https://github.com/webpack-contrib/terser-webpack-plugin/releases)
- [Changelog](https://github.com/webpack-contrib/terser-webpack-plugin/blob/master/CHANGELOG.md)
- [Commits](webpack/terser-webpack-plugin@v4.2.3...v5.3.11)

---
updated-dependencies:
- dependency-name: serialize-javascript
  dependency-type: indirect
- dependency-name: terser-webpack-plugin
  dependency-type: direct:development
...

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

Author: dependabot[bot]

package-lock.json

@@ -126,7 +126,7 @@
     "semver": "^7.6.3",
     "sinon": "^7.5.0",
     "sinon-chai": "^3.5.0",
-    "terser-webpack-plugin": "^4.2.3",
+    "terser-webpack-plugin": "^5.3.11",
     "ts-loader": "^8.0.14",
     "ts-node": "^10.9.2",
     "ts-sinon": "^1.2.0",