Prefer native Linux tags before manylinux

[Sean-Kenneth-Doherty]

Summary

• prefer native linux_* platform tags before manylinux and musllinux on Linux
• keep generating manylinux/musllinux compatibility tags immediately after the native platform tags
• update order-sensitive tag tests and the unreleased changelog

Fixes #160.

Rationale

Issue #160 describes the expectation that a wheel built for the current Linux machine should be preferred over a more generic redistributable manylinux/musllinux wheel. The issue was reopened in 2024, and a maintainer signaled that the ordering change makes sense.

Validation

• uv run --with pytest --with pretend pytest tests/test_tags.py -q
• uv run --with ruff ruff check src/packaging/tags.py tests/test_tags.py
• uv run --with ruff ruff format --check src/packaging/tags.py tests/test_tags.py
• TMPDIR=$PWD/.tmp PIP_CACHE_DIR=$PWD/.tmp/pip-cache uv run --with nox nox -s lint
• uv run --with nox nox -s tests-3.13
• git diff --check origin/main...HEAD

Note: the first lint run hit the local /tmp disk quota while creating an isolated build environment. Re-running with a repo-local TMPDIR/PIP_CACHE_DIR passed cleanly; the temporary cache was removed afterward.

Assisted-by: OpenAI Codex