Enable addtional linters (#34085)

enable mirror, usestdlibbars and perfsprint 
part of: https://github.com/go-gitea/gitea/issues/34083

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

routers/api/packages/nuget/nuget.go

@@ -488,7 +488,7 @@ func UploadPackage(ctx *context.Context) {
 		pv,
 		&packages_service.PackageFileCreationInfo{
 			PackageFileInfo: packages_service.PackageFileInfo{
-				Filename: strings.ToLower(fmt.Sprintf("%s.nuspec", np.ID)),
+				Filename: strings.ToLower(np.ID + ".nuspec"),
 			},
 			Data: nuspecBuf,
 		},