[Rust APIView] SecretClient constructor guideline references outdated AsRef parameter guidance

[azure-sdk-automation]

Bad code snippet:

pub fn new(endpoint: &str, credential: Arc<(dyn TokenCredential)>, options: Option<SecretClientOptions>) -> Result<Self> {}

What it should do:
The APIView comment cites the Rust AsRef parameter guideline and suggests changing endpoint to impl AsRef<str>, but that guideline is out of date and the referenced #rust-parameters-asref section no longer exists. The documentation/guideline should be updated rather than treating this as a current API requirement.

Good code snippet:

pub fn new(endpoint: &str, credential: Arc<dyn TokenCredential>, options: Option<SecretClientOptions>) -> Result<Self> {}