replace gitea sdk (#197)

Reviewed-on: https://gitea.com/gitea/gitea-mcp/pulls/197
Reviewed-by: silverwind <2021+silverwind@noreply.gitea.com>

operation/repo/tree.go

@@ -9,7 +9,7 @@ import (
 	"gitea.com/gitea/gitea-mcp/pkg/params"
 	"gitea.com/gitea/gitea-mcp/pkg/to"
 
-	gitea_sdk "code.gitea.io/sdk/gitea"
+	gitea_sdk "gitea.dev/sdk"
 	"github.com/mark3labs/mcp-go/mcp"
 	"github.com/mark3labs/mcp-go/server"
 )
@@ -65,7 +65,7 @@ func GetRepoTreeFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolR
 	if err != nil {
 		return to.ErrorResult(fmt.Errorf("get gitea client err: %v", err))
 	}
-	tree, _, err := client.GetTrees(owner, repo, opt)
+	tree, _, err := client.Git.GetTrees(ctx, owner, repo, opt)
 	if err != nil {
 		return to.ErrorResult(fmt.Errorf("get repository tree err: %v", err))
 	}