use ApiType trait

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

src/server/email_notifications.rs

@@ -4,7 +4,7 @@ use serde_json::json;
 use handlebars::{Handlebars, Helper, Context, RenderError, RenderContext, Output, HelperResult, TemplateError};
 
 use proxmox::tools::email::sendmail;
-use proxmox::api::schema::parse_property_string;
+use proxmox::api::schema::{ApiType, parse_property_string};
 use proxmox::try_block;
 
 use pbs_tools::format::HumanByte;