Unsupported engine

[mdzidic]

Hello,

Just tried to build a Docker image from this repository and I'm getting this warning along with other NPM warnings about deprecated Node.js packages.

npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: 'vizceral-example@4.3.0',
npm WARN EBADENGINE   required: { node: '~4.4.0' },
npm WARN EBADENGINE   current: { node: 'v17.6.0', npm: '8.5.1' }
npm WARN EBADENGINE }

Please can you check it out and also approve and merge Dependabot PRs?