Error when using components with the new components namespaces declaration

The proposed solution.

I experience the same issue after upgrading drupal/components to version 3.0.0-beta3 and i can confirm that the patch fixes the issue.

What i am not sure about is how the functionality implemented in \Drupal\graphql_twig\Template\Loader\Loader::findTemplate can work together with the new components definition syntax.

If one is using components and defined some namespaces in his thems info file like:

components:
  namespaces:
    src:
      - src
    base:
      - src/base

So after this, listComponents() will never be called in the findTemplate function, since $info['components'] will always be an array.
We are not using the "components" functionality from graphql_twig and i am not sure, what exactly it does.
For our case it fixes the issue, but if one has defined "components" in graphql_twig context in his themes info.yml then it will not work togethter with the new syntax from components.

I have not dug in very deep, but from what I can tell: it does not work together. The current bug just disrupts the process by causing an error. But I might be wrong.