chore(deps-dev): update pytest requirement from >=8.0.0 to >=9.1.1

[dependabot]

Updates the requirements on pytest to permit the latest version.

Release notes

Sourced from pytest's releases.

9.1.1

pytest 9.1.1 (2026-06-19)

Bug fixes

• #14220: Fixed a logic bug in pytest.RaisesGroup which would might cause it to display incorrect "It matches FooError() which was paired with BarError" messages.
• #14591: Fixed a regression in pytest 9.1.0 which caused overriding a parametrized fixture with an indirect @​pytest.mark.parametrize to fail with "duplicate parametrization of '<fixture name>'".
• #14606: Fixed list-item typing errors from mypy in @pytest.mark.parametrize <pytest.mark.parametrize ref> argvalues parameter.
• #14608: Fixed a regression in pytest 9.1.0 where conftest.py files located in <invocation dir>/test* were no longer loaded as initial conftests when invoked without arguments. This could cause certain hooks (like pytest_addoption) in these files to not fire.

Commits

• cf470ec Prepare release version 9.1.1
• e0c8ce6 Merge pull request #14625 from pytest-dev/patchback/backports/9.1.x/a07c31a97...
• 1b82d16 Merge pull request #14624 from pytest-dev/patchback/backports/9.1.x/b375b79ec...
• 501c4bc Merge pull request #14596 from bluetech/doc-classmethod
• b61f588 Merge pull request #14622 from chrisburr/fix-14608-initial-conftest-test-subdir
• 9a567e0 [automated] Update plugin list (#14617) (#14618)
• ef8b299 Merge pull request #14620 from pytest-dev/patchback/backports/9.1.x/680f9f3ed...
• 66abd07 Merge pull request #14220 from bysiber/fix-stale-iexp-raisesgroup
• 79fbf93 Merge pull request #14612 from pytest-dev/patchback/backports/9.1.x/974ed48b6...
• 0d312eb Merge pull request #14611 from bluetech/parametrize-argvalues-typing
• Additional commits viewable in compare view

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[srpatcha]

Review — eDB#75 "chore(deps-dev): update pytest requirement from >=8.0.0 to >=9.1.1"

head: 6e9c5ea author: app/dependabot ci: green but hollow — the test matrix never ran on this PR (finding #1)

Verdict: Clean. pytest 9.1.1 runs this repo's suite — 23 unit and 1 functional test pass, verified below — and a dev-tool floor carries no consumer-facing compatibility cost. The one finding is that this PR's green checks prove none of that, because the job that would have is not triggered on this branch. Ironically, raising a pytest floor is the change most obviously in need of a test run.

Findings

#	Severity	File:line	Finding	Recommended fix
1	Medium	.github/workflows/ci.yml:3-8 at this head	The Test (Python …) matrix and Build Python Package never ran on this PR. This branch forks from 5e436bd (2026-08-25), where ci.yml triggers on pull_request: branches: [main], and this PR targets master. master was added to the trigger later in f3b1ab0, which is not in this branch. checks.txt shows only Analyze (Python), CodeQL and assign — workflows with their own triggers, none of which executes pytest. A test-runner bump merged without running the tests is the gap worth closing here.	Rebase onto current master so the trigger applies. Sequence after eDB#82, or the matrix dies at pip install -r requirements.txt (a file that does not exist in this repo) and still tells you nothing about pytest 9.

Not a finding, but worth stating: a [project.optional-dependencies].dev floor is invisible to anything installing edb as a library, so unlike eDB#74 this narrows nothing for consumers. And pytest 9 is a major bump — the removal of deprecated hooks and nose-style setup/teardown is the usual breakage — which is exactly why the evidence below matters more than the version number.

Dependabot's own comment about missing labels does not apply to this PR and is not repeated here.

Architecture conformance

Conforms. Dev-dependency metadata only, confined to Tier 3 eDB (master design §21). No source, import, link or manifest-entry change, so §5.1 dependency direction is untouched. No effect on the §23.2 package-format contract, since [project.optional-dependencies].dev is not part of the installed distribution's runtime requirements.

Proposed changes

None to the diff. Sequence: eDB#82 → rebase this branch → let the matrix run → merge.

Verification I ran

In a clean venv on Python 3.12.14, Linux, from pyproject.toml's dev extra (uv pip install -e ".[dev]", rc 0), the resolver selected pytest 9.1.1 — the exact floor this PR proposes — with pytest-asyncio 1.4.0, pytest-cov 7.1.0 and pytest-benchmark 5.3.0:

• python -m pytest tests/unit/ -q --tb=short → 23 passed in 0.41s
• python -m pytest tests/functional/ -q --tb=short → 1 passed in 0.02s

No collection errors, no deprecation failures, and asyncio_mode = "auto" (pyproject.toml:65) still works under pytest 9 with pytest-asyncio 1.4.0 — the combination most likely to break on a pytest major bump. That is the substantive check this PR needed.

(The unit command exits 1 under the workflow's --cov=. because of the unrelated fail_under = 100 in .coveragerc:14. The tests themselves pass. See eDB#82.)

Not checked

• This PR's head was never built or tested. The runs above are against eDB#82's head, which shares master's source tree and test suite. That is evidence about pytest 9.1.1 and this codebase, not about this branch as it stands.
• tests/performance/ was not run — it is the suite most exposed to a pytest major bump via pytest-benchmark, and ci.yml:53-55 marks it continue-on-error: true, so CI would not tell you either.
• Only Python 3.12 on Linux. The 3.10 leg cannot install at all (requires-python = ">=3.11", pyproject.toml:11), 3.11 and the macOS/Windows legs were not exercised.
• I did not read the pytest 8→9 changelog against this suite; the passing run is the only evidence offered.

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Automated architecture review of 6e9c5eaf3d82 — scheduled, model claude-opus-5, checked against the EmbeddedOS Master Design v2.0. Advisory only: this reviewer never approves, requests changes, or merges. Reply here to discuss or push back — a wrong finding is a bug worth reporting.