[Bug]: OpenAPI emitted emits the auth scheme as a component

### Describe the bug

When adding an auth scheme to an API, the auth scheme get generated as component and I they should be ignored.

### Reproduction

https://typespec.io/playground/?c=aW1wb3J0ICJAdHlwZXNwZWMvaHR0cCI7DQrSGm9wZW5hcGkzxB4NCnVzaW5nIFR5cGVTcGVjLkh0dHDFGEBzZXJ2aWNlxwplcigixFNzOi8vZ3JhcGgubWljcm9zb2Z0LmNvbS92MS4wIikNCkB1c2VBdXRoKFRhc2tBUEkuRW50cmHEEikNCm5hbWVzcGFjZSDHHiB7IA0KICAvKirEByAqIEdldCBhbGwgdG9kbyBsaXN0c8YZL8QHQHJvdXRlKCIvbWUvxCEvxSHEdiAgQGdldCBvcMRBTMQWKCk6IHN0cmluZ%2BUAztVkYXNrcyBpbiBhxWrHHkBwYXJhbcUSSWQgVGhlIElEIG9mIHRoZcUVLiBJZiB5b3UgZG9uJ3Qga25vd8UcJ2lkJywgdXNlxQ7oAIcgb3BlcmF0aW9uIHRvIOQApMQeZnVsbCBkZXRhaWxzzFxzLCBpbmNsdWTkAZPIVS7%2FAQJ0cy97xAdJZH0v5QDT8QER5AFtcyjGJOgBFvoBH0NyZWF0ZSBhIG5ld%2BUBJP8BI%2F8BI%2F8BI%2F8BI%2F8BI%2B4BI%2BgAmeUAteQAl8UJdG8gY%2BUA0y7FFGVudGlyZSByZXF1ZXN0IGJvZHkgaXPFS8Uvb2JqZWN0yVJyZXR1cm5zxTvGR2TFKP8BlfgBlXBvc%2BUBluYBZeQBme8BmCwgQOUAk8Q1OuUDJ%2FABqm1vZGVsxRoge8QQ6gG85ACx7gGOxEbmAMvoAK0gIEB2aXNpYmlsaXR5KExpZmVjeWNsZS5SZWFk5QCjICBp6QCNO9ZgdGl0bGXcY8Uhy0XWR%2BYEmmFuY91MyiY6ICJsb3ciIHwgIm5vcm1hbMULaGlnaCIgPckU5QC0fewBK%2BkEguQB6E%2FECTLEBTxb5wE%2F5AUZOscZRmxvd%2BQFDC5hdXRob3JpeuUCmUNvZGXFWCAgzRhVcmw6IOkFF2xvZ2lu6gUXb25saW5l5QUdb3JnYW7HNHMvb8REMi92Mi4wL8hPZeYAuCAgdG9rZd9Y31jFWMVHyFRyZWZyZXNo31bfVtFWc2NvcGVzOiBbIuUEYOUCQldyaXRlIl3FIn1dPiB75AGKfQ%3D%3D&e=%40typespec%2Fopenapi3&options=%7B%7D

### Checklist

- [x] Follow our [Code of Conduct](https://github.com/microsoft/typespec/blob/main/CODE_OF_CONDUCT.md)
- [x] Check that there isn't already an issue that request the same bug to avoid creating a duplicate.
- [x] Check that this is a concrete bug. For Q&A open a [GitHub Discussion](https://github.com/Microsoft/typespec/discussions).
- [x] The provided reproduction is a [minimal reproducible example](https://stackoverflow.com/help/minimal-reproducible-example) of the bug.