fix(core): Command::output suspend while wait for response (#8539)

* fix: Command::output suspend while wait for response

* add change file

---------

Co-authored-by: Lucas Nogueira <lucas@tauri.studio>
Co-authored-by: Lucas Fernandes Nogueira <lucas@tauri.app>

Author: dyxushuai

.changes/fix-command-spawn-deadlock.md

@@ -0,0 +1,5 @@
+---
+"tauri": patch:bug
+---
+
+Fixes a deadlock when reading a stdout or stderr line returns an error.

core/tauri/src/api/process/command.rs

@@ -420,6 +420,7 @@ fn spawn_pipe_reader<F: Fn(String) -> CommandEvent + Send + Copy + 'static>(
         Err(e) => {
           let tx_ = tx.clone();
           let _ = block_on_task(async move { tx_.send(CommandEvent::Error(e.to_string())).await });
+          break;
         }
       }
     }