Expose repo security status field in ModelInfo

[hanouticelina]

Previously, the API response of https://huggingface.co/api/models/{repo_id}?securityStatus=true included repo security data in in the securityStatus field. This field was renamed to securityRepoStatus recently on server side, leading to issue reports huggingface/Google-Cloud-Containers#116 & #2638. However, this field wasn't explicitly exposed in ModelInfo. This PR adds it as a field in the dataclass.

Changes made

• Add and document security_repo_status field to ModelInfo dataclass. This field will contain the value returned by the API in securityRepoStatus key.
• Update model_info()'s securityStatus argument to clarify that the security status will be returned in ModelInfo.security_repo_status.
• Update related test.

@Wauplin I'm not sure if it's a good idea to remove securityRepoStatus from the dict (here), this will implicitly "break" things again since users might be using this key already. what do you think?

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[Wauplin]

Looks good!