Update project octicons to v2.1.2

libgrabber updated project octicons to v2.1.2.

@github

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "octicons",
    "repo": "github/octicons",
    "files": {
      "basePath": "octicons/",
      "exclude": ["README.md"],
      "include": ["**/*"]
    },
    "path": "/home/jsdelivr/files/octicons",
    "localVersions": ["2.0.1"],
    "remoteVersions": ["v2.0.0", "v2.0.1", "v2.0.2", "v2.1.0", "v2.1.1", "v2.1.2"],
    "branchVersions": []
  },
  "version": "v2.1.2",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/octicons/2.1.2",
  "branch": "octicons/v2.1.2"
}
```