Generate APIVersion v2 charts for manager tests

Specifically for the charts that have dependencies, the generated chart
contains no requirements.yaml in its files but has dependencies in its
metadata. Hence it is not a valid APIVersion v1 chart.

Signed-off-by: Paul "Hampy" Hampson <p_hampson@wargaming.net>

pkg/downloader/manager_test.go

@@ -211,7 +211,7 @@ func TestUpdateBeforeBuild(t *testing.T) {
 		Metadata: &chart.Metadata{
 			Name:       "with-dependency",
 			Version:    "0.1.0",
-			APIVersion: "v1",
+			APIVersion: "v2",
 			Dependencies: []*chart.Dependency{{
 				Name:       d.Metadata.Name,
 				Version:    ">=0.1.0",
@@ -285,7 +285,7 @@ func checkBuildWithOptionalFields(t *testing.T, chartName string, dep chart.Depe
 		Metadata: &chart.Metadata{
 			Name:         chartName,
 			Version:      "0.1.0",
-			APIVersion:   "v1",
+			APIVersion:   "v2",
 			Dependencies: []*chart.Dependency{&dep},
 		},
 	}