Build(deps-dev): bump pytest from 8.1.1 to 8.1.2 (#159)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.1.1 to
8.1.2.
<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>8.1.2</h2>
<h1>pytest 8.1.2 (2024-04-26)</h1>
<h2>Bug Fixes</h2>
<ul>
<li><a
href="https://redirect.github.com/pytest-dev/pytest/issues/12114">#12114</a>:
Fixed error in <code>pytest.approx</code>{.interpreted-text
role=&quot;func&quot;} when used with [numpy]{.title-ref} arrays and
comparing with other types.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pytest-dev/pytest/commit/cf84163ac3549e657eed5ef2a4f4c7a5d1ffbe8c"><code>cf84163</code></a>
Prepare release version 8.1.2</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/0675383bac14ce8e8d04b94d8d08029ac26fbbfc"><code>0675383</code></a>
[8.1.x] Fixed Bug Regarding Attribute Error in pytest.approx For Types
Implic...</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/a43b09882d49a8ce9bcc872f4f70eb589a7a92ea"><code>a43b098</code></a>
[8.1.x] Update events/trainings (<a
href="https://redirect.github.com/pytest-dev/pytest/issues/12237">#12237</a>)</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/f55c66076374ecd9ce0bf0b42d8f96eebf2ca732"><code>f55c660</code></a>
[8.1.x] doc: <code>import pytest</code> in <code>conftest.py</code>
example in <code>doctest.rst</code> (<a
href="https://redirect.github.com/pytest-dev/pytest/issues/12182">#12182</a>)</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/be7c8be6ce4598ad9e70ba7eccb9317bdda33c37"><code>be7c8be</code></a>
[8.1.x] Add research item in doc (<a
href="https://redirect.github.com/pytest-dev/pytest/issues/12148">#12148</a>)</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/c5e3921b9fef2619a3e2c7e3e07a5cc8015005d7"><code>c5e3921</code></a>
[8.1.x] doc: add versionadded to
<code>ExceptionInfo.group_contains</code> (<a
href="https://redirect.github.com/pytest-dev/pytest/issues/12142">#12142</a>)</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/83614e1f3ecf5332c3dc98a55ae9939cc41948ef"><code>83614e1</code></a>
[8.1.x] doc: fix typos (<a
href="https://redirect.github.com/pytest-dev/pytest/issues/12119">#12119</a>)</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/cd585a1abeff52b69b98ff4cf9207a7b5efc6ce7"><code>cd585a1</code></a>
[8.1.x] doc: add versionadded to <code>Stash</code> and
<code>StashKey</code> (<a
href="https://redirect.github.com/pytest-dev/pytest/issues/12109">#12109</a>)</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/6c14139c9fe3418630c4d24d43d48533a14103da"><code>6c14139</code></a>
[8.1.x] doc/flaky: remove <code>box/flaky</code> plugin suggestion (<a
href="https://redirect.github.com/pytest-dev/pytest/issues/12102">#12102</a>)</li>
<li><a
href="https://github.com/pytest-dev/pytest/commit/abb0cf4922919e3554bd16e9fc540bc107289ee9"><code>abb0cf4</code></a>
Merge pull request <a
href="https://redirect.github.com/pytest-dev/pytest/issues/12094">#12094</a>
from pytest-dev/release-8.1.1</li>
<li>See full diff in <a
href="https://github.com/pytest-dev/pytest/compare/8.1.1...8.1.2">compare
view</a></li>
</ul>
</details>
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