Update project rvc to v0.2.3

libgrabber updated project rvc to v0.2.3.

@ractivejs

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "rvc",
    "repo": "ractivejs/rvc",
    "files": {
      "include": ["rvc.min.js"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/ractive.rvc",
    "localVersions": ["0.2.2"],
    "remoteVersions": ["v0.1.0", "v0.1.1", "v0.1.2", "v0.1.4", "v0.1.5", "v0.1.7", "v0.1.8", "v0.1.9", "v0.2.0", "v0.2.2", "v0.2.3"],
    "branchVersions": []
  },
  "version": "v0.2.3",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/ractive.rvc/0.2.3",
  "branch": "rvc/v0.2.3"
}
```