Update project maskjs to v0.9.4

libgrabber updated project maskjs to v0.9.4.

@atmajs

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "maskjs",
    "repo": "atmajs/maskjs",
    "files": {
      "basePath": "lib/",
      "include": ["mask.min.js", "mask.min.js.map"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/maskjs",
    "localVersions": ["0.9.2", "0.9.3"],
    "remoteVersions": ["v0.5.5", "v0.6.0", "v0.9.3", "v0.9.4"],
    "branchVersions": []
  },
  "version": "v0.9.4",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/maskjs/0.9.4",
  "branch": "maskjs/v0.9.4"
}
```