fix: legacy docker support broken for login

Signed-off-by: Terry Howe <terrylhowe@gmail.com>

pkg/registry/client.go

@@ -262,6 +262,7 @@ func (c *Client) Login(host string, options ...LoginOption) error {
 	}
 
 	key := credentials.ServerAddressFromRegistry(host)
+	key = credentials.ServerAddressFromHostname(key)
 	if err := c.credentialsStore.Put(ctx, key, cred); err != nil {
 		return err
 	}