Remove git.Command.Run and git.Command.RunInDir* (#19280)

Follows #19266, #8553, Close #18553, now there are only three `Run..(&RunOpts{})` functions.
 * before: `stdout, err := RunInDir(path)`
 * now: `stdout, _, err := RunStdString(&git.RunOpts{Dir:path})`

services/pull/patch_unmerged.go

@@ -63,11 +63,10 @@ func readUnmergedLsFileLines(ctx context.Context, tmpBasePath string, outputChan
 
 	stderr := &strings.Builder{}
 	err = git.NewCommand(ctx, "ls-files", "-u", "-z").
-		RunWithContext(&git.RunContext{
-			Timeout: -1,
-			Dir:     tmpBasePath,
-			Stdout:  lsFilesWriter,
-			Stderr:  stderr,
+		Run(&git.RunOpts{
+			Dir:    tmpBasePath,
+			Stdout: lsFilesWriter,
+			Stderr: stderr,
 			PipelineFunc: func(_ context.Context, _ context.CancelFunc) error {
 				_ = lsFilesWriter.Close()
 				defer func() {