fix(ci): publish from single build leg to avoid wheel content conflicts

[pollockjj]

Summary

Pure Python package produces py3-none-any wheel — identical filename from all 9 build matrix legs but non-identical content (timestamps, metadata ordering). The publish job's dedup check fails on content mismatch.

Fix: download artifacts from a single build leg (ubuntu-latest py3.11) for publish, matching the smoke-test approach.

Test plan

• Full CI matrix validated (38/38 pass)

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

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Run ID: 8b98e67b-97b8-466c-bf0a-fc821732fd97

📥 Commits

Reviewing files that changed from the base of the PR and between 34db809 and 1868078.

📒 Files selected for processing (1)

• .github/workflows/build-wheels.yml

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📝 Walkthrough

Walkthrough

GitHub Actions workflow in the build-wheels pipeline is simplified to use a named artifact download (dist-ubuntu-latest-py3.11) instead of pattern-based retrieval, eliminates local file deduplication logic, and renames the collection step to verification while streamlining the subsequent validation process.

Changes

Cohort / File(s)	Summary
GitHub Actions Workflow Configuration .github/workflows/build-wheels.yml	Updated artifact download strategy from generic pattern matching to named artifact; removed local distribution consolidation and file deduplication logic; renamed "Collect distributions" step to "Verify distributions"; simplified verification to operate directly on downloaded dist directory.

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[Copilot]

Pull request overview

Adjusts the release publish workflow to avoid artifact deduplication failures caused by multiple matrix legs producing the same py3-none-any wheel filename with non-identical byte content.

Changes:

• Downloads distributions for publishing from a single build artifact (dist-ubuntu-latest-py3.11) instead of aggregating all matrix artifacts.
• Removes the publish-time artifact collection/deduplication logic and replaces it with a simpler “verify distributions exist” check.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Flag	Coverage Δ
unittests	60.55% <ø> (ø)

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