build(deps-dev): update pytest requirement from <9,>=8 to >=9.1.1,<10 (#5)

Updates the requirements on
[pytest](https://github.com/pytest-dev/pytest) to permit the latest
version.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/pytest-dev/pytest/releases">pytest's
releases</a>.</em></p>
<blockquote>
<h2>9.1.1</h2>
<h1>pytest 9.1.1 (2026-06-19)</h1>
<h2>Bug fixes</h2>
<ul>
<li><a
href="https://redirect.github.com/pytest-dev/pytest/issues/14220">#14220</a>:
Fixed a logic bug in <code>pytest.RaisesGroup</code> which would might
cause it to display incorrect &quot;It matches <!-- raw HTML omitted
-->FooError()<!-- raw HTML omitted --> which was paired with <!-- raw
HTML omitted -->BarError<!-- raw HTML omitted -->&quot; messages.</li>
<li><a
href="https://redirect.github.com/pytest-dev/pytest/issues/14591">#14591</a>:
Fixed a regression in pytest 9.1.0 which caused overriding a
parametrized fixture with an indirect <!-- raw HTML omitted --><a
href="https://github.com/pytest"><code>@​pytest</code></a>.mark.parametrize<!--
raw HTML omitted --> to fail with &quot;duplicate parametrization of
'&lt;fixture name&gt;'&quot;.</li>
<li><a
href="https://redirect.github.com/pytest-dev/pytest/issues/14606">#14606</a>:
Fixed <code>list-item</code> typing errors from mypy in
<code>@pytest.mark.parametrize &lt;pytest.mark.parametrize
ref&gt;</code> <code>argvalues</code> parameter.</li>
<li><a
href="https://redirect.github.com/pytest-dev/pytest/issues/14608">#14608</a>:
Fixed a regression in pytest 9.1.0 where <code>conftest.py</code> files
located in <code>&lt;invocation dir&gt;/test*</code> were no longer
loaded as initial conftests when invoked without arguments.
This could cause certain hooks (like <code>pytest_addoption</code>) in
these files to not fire.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pytest-dev/pytest/commit/cf470ec0bf7eb89cd97dd56df4859eae5db46447"><code>cf470ec</code></a>
Prepare release version 9.1.1</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/e0c8ce6cc5db1f08363be6f152c32e6838df2690"><code>e0c8ce6</code></a>
Merge pull request <a
href="https://redirect.github.com/pytest-dev/pytest/issues/14625">#14625</a>
from pytest-dev/patchback/backports/9.1.x/a07c31a97...</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/1b82d1694fce22385ee7a4287917fbafbaf2e757"><code>1b82d16</code></a>
Merge pull request <a
href="https://redirect.github.com/pytest-dev/pytest/issues/14624">#14624</a>
from pytest-dev/patchback/backports/9.1.x/b375b79ec...</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/501c4bc784da3b08bfcaa64858eba5d15dc59e53"><code>501c4bc</code></a>
Merge pull request <a
href="https://redirect.github.com/pytest-dev/pytest/issues/14596">#14596</a>
from bluetech/doc-classmethod</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/b61f588e36e9377c3d1d3f06bece1da0fc31d9ca"><code>b61f588</code></a>
Merge pull request <a
href="https://redirect.github.com/pytest-dev/pytest/issues/14622">#14622</a>
from chrisburr/fix-14608-initial-conftest-test-subdir</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/9a567e009f4d2da3ce1721c6db3109cb5744d40a"><code>9a567e0</code></a>
[automated] Update plugin list (<a
href="https://redirect.github.com/pytest-dev/pytest/issues/14617">#14617</a>)
(<a
href="https://redirect.github.com/pytest-dev/pytest/issues/14618">#14618</a>)</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/ef8b2993e5b48639e4a3d97d0525df9760781384"><code>ef8b299</code></a>
Merge pull request <a
href="https://redirect.github.com/pytest-dev/pytest/issues/14620">#14620</a>
from pytest-dev/patchback/backports/9.1.x/680f9f3ed...</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/66abd0784d4cb7c1ba44ab9a8896506cd4985acc"><code>66abd07</code></a>
Merge pull request <a
href="https://redirect.github.com/pytest-dev/pytest/issues/14220">#14220</a>
from bysiber/fix-stale-iexp-raisesgroup</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/79fbf93b666cac5f27c9dad047943d47b766c8d5"><code>79fbf93</code></a>
Merge pull request <a
href="https://redirect.github.com/pytest-dev/pytest/issues/14612">#14612</a>
from pytest-dev/patchback/backports/9.1.x/974ed48b6...</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/0d312eb876177e9f1c04262b54060a41034ebf5c"><code>0d312eb</code></a>
Merge pull request <a
href="https://redirect.github.com/pytest-dev/pytest/issues/14611">#14611</a>
from bluetech/parametrize-argvalues-typing</li>
<li>Additional commits viewable in <a
href="https://github.com/pytest-dev/pytest/compare/8.0.0...9.1.1">compare
view</a></li>
</ul>
</details>
<br />

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements-dev.txt

@@ -1,2 +1,2 @@
-pytest>=8,<9
+pytest>=9.1.1,<10
 ruff>=0.16.4,<0.17