Update project mediaelement to 2.16.3

libgrabber updated project mediaelement to 2.16.3.

@johndyer

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "mediaelement",
    "repo": "johndyer/mediaelement",
    "files": {
      "basePath": "build/",
      "exclude": ["jquery.js", "DO NOT CHANGE THESE FILES. USE -src- FOLDER.txt"],
      "include": ["**/*"]
    },
    "path": "/home/jsdelivr/files/mediaelement",
    "localVersions": ["2.10.0", "2.10.1", "2.10.3", "2.11.0", "2.12.0", "2.13.1", "2.14.2", "2.15.0", "2.15.1", "2.16.0", "2.16.1", "2.16.2"],
    "remoteVersions": ["1.0.0", "1.0.1", "1.0.2", "1.0.3", "1.0.4", "1.0.5", "1.0.6", "1.0.7", "1.1", "1.1.1", "1.1.2", "1.1.3", "1.1.4", "1.1.5", "1.1.6", "2.0.0", "2.0.1", "2.0.2", "2.0.3", "2.0.4", "2.0.5", "2.0.6", "2.0.7", "2.1.0", "2.1.1", "2.1.2", "2.1.3", "2.1.4", "2.1.5", "2.1.6", "2.1.7", "2.1.8", "2.1.9", "2.2.0", "2.2.1", "2.2.2", "2.2.3", "2.2.4", "2.2.5", "2.3.0", "2.3.1", "2.3.2", "2.3.3", "2.4.0", "2.4.1", "2.4.2", "2.4.3", "2.5.0", "2.6.3", "2.6.4", "2.6.5", "2.7.0", "2.8.0", "2.8.1", "2.8.2", "2.9.0", "2.9.1", "2.9.2", "2.9.3", "2.9.4", "2.9.5", "2.10.0", "2.10.1", "2.10.2", "2.10.3", "2.11.0", "2.11.1", "2.11.2", "2.11.3", "2.12.0", "2.13.0", "2.13.1", "2.13.2", "2.14.0", "2.14.2", "2.15.0", "2.15.1", "2.16.0", "2.16.1", "2.16.2", "2.16.3"],
    "branchVersions": []
  },
  "version": "2.16.3",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/mediaelement/2.16.3",
  "branch": "mediaelement/2.16.3"
}
```