Bump node-forge and parcel in /example

Removes [node-forge](https://github.com/digitalbazaar/forge). It's no longer used after updating ancestor dependency [parcel](https://github.com/parcel-bundler/parcel). These dependencies need to be updated together.


Removes `node-forge`

Updates `parcel` from 1.12.3 to 2.16.1
- [Release notes](https://github.com/parcel-bundler/parcel/releases)
- [Changelog](https://github.com/parcel-bundler/parcel/blob/v2/CHANGELOG.md)
- [Commits](https://github.com/parcel-bundler/parcel/compare/parcel-bundler@1.12.3...v2.16.1)

---
updated-dependencies:
- dependency-name: node-forge
  dependency-version: 
  dependency-type: indirect
- dependency-name: parcel
  dependency-version: 2.16.1
  dependency-type: direct:development
...

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Author: dependabot[bot]