Update project domtastic to 0.8.3

libgrabber updated project domtastic to 0.8.3.

@webpro

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "domtastic",
    "repo": "webpro/DOMtastic-release",
    "files": {
      "include": ["domtastic.*"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/domtastic",
    "localVersions": ["0.6.1", "0.6.2", "0.7.0", "0.7.1", "0.7.2", "0.7.3", "0.7.4", "0.7.5", "0.7.6", "0.7.7", "0.8.0", "0.8.1", "0.8.2"],
    "remoteVersions": ["0.3.4", "0.3.5", "0.4.0", "0.4.1", "0.4.2", "0.4.3", "0.5.0", "0.5.1", "0.6.0", "0.6.1", "0.6.2", "0.7.0", "0.7.1", "0.7.2", "0.7.3", "0.7.4", "0.7.5", "0.7.6", "0.7.7", "0.8.0", "0.8.1", "0.8.2", "0.8.3"],
    "branchVersions": []
  },
  "version": "0.8.3",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/domtastic/0.8.3",
  "branch": "domtastic/0.8.3"
}
```