Warning: This build has drifted.
The coverage report for this pull request build may be inaccurate because its base commit is no longer the HEAD of its target branch.
This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

    • Learn more: For more information on this, see Tracking coverage changes for pull request builds.
    • Fix now: For a quick fix, rebase this PR at GitHub. Your next report should be accurate.
    • Prevent going forward: To avoid this issue with future PRs, see these Recommended CI Configurations.

Refactor environment key retrieval in ReqLLM.Provider.Registry

- Updated the `get_env_key/1` function to use a `with` construct for improved readability and error handling.
- This change enhances the clarity of the logic for retrieving environment keys from provider metadata, ensuring a more robust and maintainable code structure.

These modifications contribute to better code quality and adherence to Elixir conventions.