api_client: Add TooManyRequests status code

In order to be on-pair with what's we're using from micro-http, let's
also add the proper status code here as well (as it will be used by
`ch-remote`).

Signed-off-by: Fabiano Fidêncio <fidencio@northflank.com>

api_client/src/lib.rs

@@ -32,6 +32,7 @@ pub enum StatusCode {
     NoContent,
     BadRequest,
     NotFound,
+    TooManyRequests,
     InternalServerError,
     NotImplemented,
     Unknown,
@@ -45,6 +46,7 @@ impl StatusCode {
             204 => StatusCode::NoContent,
             400 => StatusCode::BadRequest,
             404 => StatusCode::NotFound,
+            429 => StatusCode::TooManyRequests,
             500 => StatusCode::InternalServerError,
             501 => StatusCode::NotImplemented,
             _ => StatusCode::Unknown,