ensure error is correctly handled when generating chart's oci manifest

Signed-off-by: Josh Wolf <josh@joshwolf.dev>

internal/experimental/registry/client.go

@@ -242,7 +242,6 @@ func (c *Client) Pull(ref string, options ...PullOption) (*PullResult, error) {
 		oras.WithLayerDescriptors(func(l []ocispec.Descriptor) {
 			layers = l
 		}))
-
 	if err != nil {
 		fmt.Println(err)
 		return nil, err
@@ -456,7 +455,11 @@ func (c *Client) Push(data []byte, ref string, options ...PushOption) (*PushResu
 	}
 
 	manifestData, manifest, err := content.GenerateManifest(&configDescriptor, nil, descriptors...)
-	if err = memoryStore.StoreManifest(ref, manifest, manifestData); err != nil {
+	if err != nil {
+		return nil, err
+	}
+
+	if err := memoryStore.StoreManifest(ref, manifest, manifestData); err != nil {
 		return nil, err
 	}