fix: Reformat code with Ruff 0.16.0

[tiran]

Pull Request Description

What

Reformat code with latest Ruff. Ruff 0.16.0 enables more checkers by default and can now format code in Markdown files, too.

Why

See https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md

• PR follows CONTRIBUTING.md guidelines

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 4c485803-d22e-4cfc-8ffc-6416edd78642

📥 Commits

Reviewing files that changed from the base of the PR and between 5cf74fb and 750edbb.

📒 Files selected for processing (5)

• docs/customization.md
• docs/http-retry.md
• docs/proposals/new-resolver-config.md
• docs/proposals/wheel-build-tag-hook.md
• src/fromager/packagesettings/_pbi.py

🚧 Files skipped from review as they are similar to previous changes (4)

• src/fromager/packagesettings/_pbi.py
• docs/proposals/wheel-build-tag-hook.md
• docs/proposals/new-resolver-config.md
• docs/customization.md

---

📝 Walkthrough

Walkthrough

Documentation code examples are reformatted across customization, HTTP retry, resolver configuration, and wheel build tag hook proposals. The changes adjust whitespace, line wrapping, and compactness while preserving shown logic and type contracts. The _plugin_module union annotation in PackageBuildInfo is reordered without changing its default value or runtime behavior.

Estimated code review effort: 1 (Trivial) | ~3 minutes

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the main change: reformatting code with Ruff 0.16.0.
Description check	✅ Passed	The description accurately describes the Ruff-based reformatting and Markdown formatting updates.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[rd4398]

LGTM!

[mergify]

Tick the box to add this pull request to the merge queue (same as @mergifyio queue).

• Queue this pull request

[mergify]

queue

⚠️ Configuration not compatible with a branch protection setting

Details

The branch protection setting Require branches to be up to date before merging is not compatible with draft PR checks. To keep this branch protection enabled, update your Mergify configuration to enable in-place checks: set merge_queue.max_parallel_checks: 1, set every queue rule batch_size: 1, and avoid two-step CI (make merge_conditions identical to queue_conditions). Otherwise, disable this branch protection.