Update project jquery.ajaxify to 5.2.1

libgrabber updated project jquery.ajaxify to 5.2.1.

@arvgta

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "jquery.ajaxify",
    "repo": "arvgta/ajaxify",
    "files": {
      "basePath": "/",
      "include": ["ajaxify.js", "ajaxify.min.js"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/jquery.ajaxify",
    "localVersions": ["4.2.8", "4.3.0", "4.4.2", "4.7.4", "4.7.5", "4.8.0", "4.9.0", "5.0.0", "5.0.1", "5.0.2", "5.1.0", "5.2.0"],
    "remoteVersions": ["4.4.9", "4.5.0", "4.5.1", "4.5.2", "4.5.3", "4.5.4", "4.6.0", "4.6.1", "4.6.2", "4.6.3", "4.6.4", "4.6.5", "4.6.6", "4.6.7", "4.6.8", "4.6.9", "4.7.0", "4.7.1", "4.7.2", "4.7.3", "4.7.4", "4.7.5", "4.8.0", "4.9.0", "5.0.0", "5.0.1", "5.0.2", "5.1.0", "5.2.0", "5.2.1"],
    "branchVersions": []
  },
  "version": "5.2.1",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/jquery.ajaxify/5.2.1",
  "branch": "jquery.ajaxify/5.2.1"
}
```