ci: add pytest-cov to cibuildwheel test-requires

[Copilot]

cibuildwheel's test environment was missing pytest-cov, causing coverage collection to fail during CI wheel tests despite --cov=apyds being configured in pytest options.

Changes

• Added pytest-cov to [tool.cibuildwheel] test-requires (no version pin per request)

test-requires = ["pytest", "pytest-cov"]

The dev dependencies already include pytest-cov; this aligns the cibuildwheel test environment.

Original prompt

Create a new branch named ci/add-pytest-cov-to-cibuildwheel from main, modify pyproject.toml to ensure cibuildwheel installs pytest-cov during its test step, commit and open a pull request.

Files to change:

• pyproject.toml (path at repo root)

Change required:
In the [tool.cibuildwheel] section, update the test-requires setting from:
test-requires = ["pytest"]
to:
test-requires = ["pytest", "pytest-cov"]

Notes and constraints:

• Do not pin a version for pytest-cov (no version specifier, user requested "不要指定版本").
• Keep all other file content unchanged and preserve formatting.
• Commit message: "Add pytest-cov to cibuildwheel test-requires in pyproject.toml".
• PR title: "ci: add pytest-cov to cibuildwheel test-requires".
• PR description: "Add pytest-cov to the cibuildwheel test-requires in pyproject.toml so that cibuildwheel's test environment installs pytest-cov and can collect coverage during CI. No version is pinned per request. The project's optional dev dependencies already include pytest-cov."
• Base branch: main

Please create the branch, apply the change, push the branch, and open a pull request with the specified title and description.

This pull request was created as a result of the following prompt from Copilot chat.

Create a new branch named ci/add-pytest-cov-to-cibuildwheel from main, modify pyproject.toml to ensure cibuildwheel installs pytest-cov during its test step, commit and open a pull request.

Files to change:

• pyproject.toml (path at repo root)

Change required:
In the [tool.cibuildwheel] section, update the test-requires setting from:
test-requires = ["pytest"]
to:
test-requires = ["pytest", "pytest-cov"]

Notes and constraints:

• Do not pin a version for pytest-cov (no version specifier, user requested "不要指定版本").
• Keep all other file content unchanged and preserve formatting.
• Commit message: "Add pytest-cov to cibuildwheel test-requires in pyproject.toml".
• PR title: "ci: add pytest-cov to cibuildwheel test-requires".
• PR description: "Add pytest-cov to the cibuildwheel test-requires in pyproject.toml so that cibuildwheel's test environment installs pytest-cov and can collect coverage during CI. No version is pinned per request. The project's optional dev dependencies already include pytest-cov."
• Base branch: main

Please create the branch, apply the change, push the branch, and open a pull request with the specified title and description.

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