Update project dropkick to v1.5.2

libgrabber updated project dropkick to v1.5.2.



### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "dropkick",
    "repo": "Robdel12/DropKick",
    "files": {
      "include": ["jquery.dropkick-min.js", "jquery.dropkick.js", "css/dropkick.css"],
      "exclude": []
    },
    "path": "/home/aleksandar/projects/jsdelivr-aleksandarabot/files/dropkick",
    "localVersions": [],
    "remoteVersions": ["v1.0.0", "v1.5.1", "v1.5.2"],
    "branchVersions": []
  },
  "version": "v1.5.2",
  "updated": true,
  "updatePath": "/home/aleksandar/projects/jsdelivr-aleksandarabot/files/dropkick/1.5.2",
  "branch": "dropkick/v1.5.2"
}
```