fix(ci): disable Linux aarch64 wheel build temporarily

[goldmedal]

Summary

• Comment out Linux aarch64 from the wheel build matrix
• Simplify manylinux back to auto (no per-matrix override needed)
• Document supported platforms in README

Remaining platforms: Linux x86_64, macOS x86_64/arm64, Windows x86_64.

Root Cause

The ring crate 0.17+ cross-compilation for aarch64 fails due to missing __ARM_ARCH in the manylinux GCC toolchain. Neither manylinux_2_28 nor native ARM runners resolved the issue within the maturin-action Docker build.

Ref: PyO3/maturin-action#222

Test plan

• Trigger pypi-publish.yml workflow — all 4 remaining builds should pass

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Updated installation guide to clarify pre-built wheel availability by platform: Linux x86_64, macOS x86_64/ARM64, and Windows x86_64. Linux ARM64 wheels are not available; users on that platform will need to build from source with a Rust toolchain.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 1882f71a-33c0-4727-97db-8b8bd62bfb6f

📥 Commits

Reviewing files that changed from the base of the PR and between dfdff01 and 0230bb0.

📒 Files selected for processing (2)

• .github/workflows/pypi-publish.yml
• wren-core-py/README.md

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📝 Walkthrough

Walkthrough

The PyPI publishing workflow removes the Linux aarch64 wheel build job from the build matrix and changes the manylinux configuration from conditional to constant value. Documentation is updated to clarify which pre-built wheels are available by platform and note that Linux ARM64 requires building from source.

Changes

Cohort / File(s)	Summary
CI/Workflow Configuration .github/workflows/pypi-publish.yml	Removes Linux aarch64 job from wheel build matrix; changes manylinux configuration from conditional expression (${{ matrix.manylinux || 'auto' }}) to constant value (manylinux: auto).
Documentation wren-core-py/README.md	Adds clarification about pre-built wheel availability by platform (Linux x86_64, macOS x86_64/ARM64, Windows x86_64) and notes that Linux ARM64 wheels are unavailable, requiring source build with Rust toolchain.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Possibly related PRs

• fix(ci): use native ARM64 runner for Linux aarch64 wheel build #1501 — Relates to the Linux aarch64 wheel build removal by proposing an alternative approach using native ARM64 runners instead of removal.
• fix(ci): fix Linux aarch64 wheel build for ring crate compatibility #1502 — Directly related through aarch64/manylinux configuration changes in the same workflow file, proposing different handling of the aarch64 build job.
• chore: add PyPI publishing infrastructure for wren-core-py #1496 — Foundational PR that originally added the PyPI publish workflow with Linux aarch64 support, which this PR modifies.

Suggested labels

ci, python, documentation

Suggested reviewers

• douenergy

Poem

🐰 A hop, a skip, the aarch64 departs,
One wheel left behind on the build matrix chart.
"Docs!" cries the rabbit with glee,
"Now all know which wheels they can see!" 🛞

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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