fix: try to avoid asking ssh passphrase every time while communicating with remote (#1577)

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/Commands/Command.cs

@@ -176,8 +176,10 @@ protected ProcessStartInfo CreateGitStartInfo(bool redirect)
             // Force using this app as SSH askpass program
             var selfExecFile = Process.GetCurrentProcess().MainModule!.FileName;
             start.Environment.Add("SSH_ASKPASS", selfExecFile); // Can not use parameter here, because it invoked by SSH with `exec`
-            start.Environment.Add("SSH_ASKPASS_REQUIRE", "force");
+            start.Environment.Add("SSH_ASKPASS_REQUIRE", "prefer");
             start.Environment.Add("SOURCEGIT_LAUNCH_AS_ASKPASS", "TRUE");
+            if (!OperatingSystem.IsLinux())
+                start.Environment.Add("DISPLAY", "required");
 
             // If an SSH private key was provided, sets the environment.
             if (!start.Environment.ContainsKey("GIT_SSH_COMMAND") && !string.IsNullOrEmpty(SSHKey))