Client.Request does not respect custom http.Client timeout (Kubernetes controller)

[francescobianco]

Description
While integrating in a Kubernetes controller (using controller-runtime), requests hang indefinitely despite setting timeouts.

Code snippet

httpClient := &http.Client{
    Timeout: 5 * time.Second,
}

apiClient := client.NewClient(token)

_, err := apiClient.Request(ctx, "GET", baseURL, "/advance", nil, nil)

Issue
SDK does not allow injecting custom http.Client.