chore(deps): update dependency pytest-mock to v3.16.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pytest-mock (changelog)	==3.15.1 → ==3.16.0

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Release Notes

pytest-dev/pytest-mock (pytest-mock)

v3.16.0

Compare Source

2026-09-27

• #&#8203;604 <https://github.com/pytest-dev/pytest-mock/pull/604>_: Fixed duplicate_iterators=True for async functions spied with mocker.spy.
• #&#8203;611 <https://github.com/pytest-dev/pytest-mock/pull/611>_: Fixed async mock assertion introspection to use awaited arguments instead of the latest call's arguments.
• #&#8203;606 <https://github.com/pytest-dev/pytest-mock/pull/606>_: mocker.resetall(return_value=True, side_effect=True) now also applies to non-callable mocks, such as those returned by mocker.create_autospec(SomeClass, instance=True). Previously both arguments were silently ignored for them.
• #&#8203;547 <https://github.com/pytest-dev/pytest-mock/issues/547>_: Added SpyType for annotating mocker.spy results.
• Dropped support for EOL Python 3.9.
• #&#8203;147 <https://github.com/pytest-dev/pytest-mock/issues/147>_: Removed handling of RuntimeError: stop called on unstarted patcher, which can no longer occur in the supported Python versions.
• Added support for Python 3.15.

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[claude]

Looks good, straightforward version bump. Reviewed the single-line change bumping pytest-mock 3.15.1 to 3.16.0 in requirements-dev.txt — this is a dev-only test dependency with no application code touched, and the version matches the changelog cited in the PR description.

Extended reasoning...

The diff touches only requirements-dev.txt, bumping the pinned pytest-mock dev dependency from 3.15.1 to 3.16.0; no source code or security-sensitive surface is affected. This is a routine, mechanical lockfile update from Renovate with a clear one-line diff, warranting approval without further human review.