Fix: Change list method parameters from Iterator to Iterable for better API usability

[Marenz]

• Changed target_components, dispatch_ids, and filter_queries parameters
  from Iterator to Iterable in the list method
• This allows users to pass any iterable (list, tuple, generator, etc.)
  instead of requiring specific iterator types
• Improves API flexibility and usability

[Copilot]

Pull Request Overview

This PR improves the API usability of the dispatch client by changing parameter types from Iterator to Iterable. The change allows users to pass any iterable collection (lists, tuples, generators, etc.) instead of requiring specific iterator types, making the API more flexible and user-friendly.

• Updated type hints from Iterator to Iterable for three parameters in the list method
• Changed default values from iter(()) to () for consistency with the new types
• Added release note documenting the improvement

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/frequenz/client/dispatch/_client.py	Updated list method parameter types and defaults to accept Iterable instead of Iterator
RELEASE_NOTES.md	Added bug fix entry documenting the API improvement

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[llucax]

Nitpick, I would put this as a "new feature", nothing was really broken, we are just accepting a wider range of parameters.