You can add a `formKey` to your request.

Magento checks in the `validateRequest` function at `Magento\Framework\App\Request\CsrfValidator` if the request is intance of `CsrfAwareActionInterface`, not a post request, ajax or has a valide `formKey`:

    private function validateRequest(
            HttpRequest $request,
            ActionInterface $action
        ): bool {
            $valid = null;
            if ($action instanceof CsrfAwareActionInterface) {
                $valid = $action->validateForCsrf($request);
            }
            if ($valid === null) {
                $valid = !$request->isPost()
                    || $request->isAjax()
                    || $this->formKeyValidator->validate($request);
            }
    
            return $valid;
        }

You can inject `Magento\Framework\Data\Form\FormKey` and add to your request:

     $requestUrl .= '?form_key=' . $this->formKey->getFormKey();