Use metrics-id for sentry user id when we have it (#42931)

This should make it easier to correlate Sentry reports with user reports
and
github issues (for users who have diagnostics enabled)

Release Notes:

- N/A

crates/zed/src/main.rs

@@ -549,11 +549,7 @@ pub fn main() {
         auto_update::init(client.clone(), cx);
         dap_adapters::init(cx);
         auto_update_ui::init(cx);
-        reliability::init(
-            client.http_client(),
-            system_id.as_ref().map(|id| id.to_string()),
-            cx,
-        );
+        reliability::init(client.clone(), cx);
         extension_host::init(
             extension_host_proxy.clone(),
             app_state.fs.clone(),