Update project EventEmitter to v4.2.9

libgrabber updated project EventEmitter to v4.2.9.

@Wolfy87

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "EventEmitter",
    "repo": "Wolfy87/EventEmitter",
    "files": {
      "include": ["EventEmitter.min.js"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/eventemitter",
    "localVersions": ["4.2.7", "4.2.8"],
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    "branchVersions": []
  },
  "version": "v4.2.9",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/eventemitter/4.2.9",
  "branch": "EventEmitter/v4.2.9"
}
```