Add a check for when the command is canceled by the program on Window… (#29538)

Add a check for when the command is canceled by the program on Window… (#29538)

Close #29509

Windows, unlike Linux, does not have signal-specified exit codes.
Therefore, we should add a Windows-specific check for Windows. If we
don't do this, the logs will always show a failed status, even though
the command actually works correctly.

If you check the Go source code in exec_windows.go, you will see that it
always returns exit code 1.

![image](https://github.com/go-gitea/gitea/assets/30816317/9dfd7c70-9995-47d9-9641-db793f58770c)

The exit code 1 does not exclusively signify a SIGNAL KILL; it can
indicate any issue that occurs when a program fails.