[FIX] 修改拉取chart保存的地址，避免ci中的 invalid cross-device link

Author: yidaqiang

pkg/syncer/index.go

@@ -5,7 +5,7 @@ import (
 	"gopkg.in/yaml.v3"
 	"helm.sh/helm/v3/pkg/chart/loader"
 	"helm.sh/helm/v3/pkg/chartutil"
-	"io/ioutil"
+	"os"
 	"regexp"
 	"sort"
 	"time"
@@ -315,7 +315,7 @@ func modifyChartImageTag(chartPath string) (string, error) {
 				//if err != nil {
 				//	return errors.Trace(err)
 				//}
-				targetPath, err := ioutil.TempDir("", "source-charts-syncer")
+				targetPath, err := os.MkdirTemp("", "source-charts-syncer")
 				chartPath, err = chartutil.Save(cq, targetPath)
 				if err != nil {
 					return "", errors.Trace(err)