Bump node-forge and laravel-mix (#56)

Bumps [node-forge](https://github.com/digitalbazaar/forge) to 1.3.1 and updates ancestor dependency [laravel-mix](https://github.com/JeffreyWay/laravel-mix). These dependencies need to be updated together.


Updates `node-forge` from 0.10.0 to 1.3.1
- [Changelog](https://github.com/digitalbazaar/forge/blob/main/CHANGELOG.md)
- [Commits](digitalbazaar/forge@0.10.0...v1.3.1)

Updates `laravel-mix` from 6.0.31 to 6.0.49
- [Release notes](https://github.com/JeffreyWay/laravel-mix/releases)
- [Changelog](https://github.com/laravel-mix/laravel-mix/blob/master/CHANGELOG.md)
- [Commits](https://github.com/JeffreyWay/laravel-mix/commits)

---
updated-dependencies:
- dependency-name: node-forge
  dependency-type: indirect
- dependency-name: laravel-mix
  dependency-type: direct:development
...

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