feat(core): reimplement clone with go-git

internal/homesick/core/core.go

@@ -10,6 +10,8 @@ import (
 	"path/filepath"
 	"sort"
 	"strings"
+
+	git "github.com/go-git/go-git/v5"
 )
 
 type App struct {
@@ -70,8 +72,12 @@ func (a *App) Clone(uri string, destination string) error {
 		return nil
 	}
 
-	if err := runGit(a.ReposDir, "clone", "-q", "--config", "push.default=upstream", "--recursive", uri, destination); err != nil {
-		return err
+	_, err := git.PlainClone(destinationPath, false, &git.CloneOptions{
+		URL:               uri,
+		RecurseSubmodules: git.DefaultSubmoduleRecursionDepth,
+	})
+	if err != nil {
+		return fmt.Errorf("clone %q into %q failed: %w", uri, destinationPath, err)
 	}
 
 	return nil