Update project highmaps to v1.0.4

libgrabber updated project highmaps to v1.0.4.

@highslide-software

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "highmaps",
    "repo": "highslide-software/highmaps-release",
    "files": {
      "include": ["highmaps.js", "./modules/exporting.js", "./modules/heatmap.js", "./modules/map.js"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/highmaps",
    "localVersions": [],
    "remoteVersions": ["v1.0.1", "v1.0.2", "v1.0.3", "v1.0.4"],
    "branchVersions": []
  },
  "version": "v1.0.4",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/highmaps/1.0.4",
  "branch": "highmaps/v1.0.4"
}
```