Fix default registry config path of oci protocol provider

Signed-off-by: Kai Takac <kai.takac@gmail.com>
(cherry picked from commit 52cbc2f49c)

internal/experimental/registry/client.go

@@ -62,7 +62,7 @@ func NewClient(options ...ClientOption) (*Client, error) {
 		option(client)
 	}
 	if client.credentialsFile == "" {
-		client.credentialsFile = helmpath.CachePath("registry", CredentialsFileBasename)
+		client.credentialsFile = helmpath.ConfigPath(CredentialsFileBasename)
 	}
 	if client.authorizer == nil {
 		authClient, err := dockerauth.NewClient(client.credentialsFile)

internal/experimental/registry/constants.go

@@ -21,7 +21,7 @@ const (
 	OCIScheme = "oci"
 
 	// CredentialsFileBasename is the filename for auth credentials file
-	CredentialsFileBasename = "config.json"
+	CredentialsFileBasename = "registry.json"
 
 	// ConfigMediaType is the reserved media type for the Helm chart manifest config
 	ConfigMediaType = "application/vnd.cncf.helm.config.v1+json"