Update project sizzle to 2.1.0

libgrabber updated project sizzle to 2.1.0.

@jquery

### Metadata information

```json
{
  "metadata": {
    "packageManager": "npm",
    "repo": "jquery/sizzle",
    "name": "sizzle",
    "files": {
      "basePath": "dist",
      "include": ["**/*"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/sizzle",
    "localVersions": ["0.1.0", "1.8.3-b", "1.9.1", "2.0.0"],
    "remoteVersions": ["1.0.0", "1.0.1", "1.1.0", "2.0.0", "2.1.0"],
    "branchVersions": []
  },
  "version": "2.1.0",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/sizzle/2.1.0",
  "branch": "sizzle/2.1.0"
}
```