Bump time-machine from 2.18.0 to 2.19.0 (PR #9453)

Bumps [time-machine](https://github.com/adamchainz/time-machine) from 2.18.0 to 2.19.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/adamchainz/time-machine/blob/main/docs/changelog.rst">time-machine's changelog</a>.</em></p>
<blockquote>
<h2>2.19.0 (2025-08-19)</h2>
<ul>
<li>
<p>Add marker support to :doc:<code>the pytest plugin &lt;pytest_plugin&gt;</code>.
Decorate tests with <code>@pytest.mark.time_machine(&lt;destination&gt;)</code> to set time during a test, affecting function-level fixtures as well.</p>
<p>Thanks to Javier Buzzi in <code>PR [#499](adamchainz/time-machine#499) &lt;https://github.com/adamchainz/time-machine/pull/499&gt;</code>__.</p>
</li>
<li>
<p>Add asynchronous context manager support to <code>time_machine.travel()</code>.
You can now use <code>async with time_machine.travel(...):</code> in asynchronous code, per :ref:<code>the documentation &lt;travel-context-manager&gt;</code>.</p>
<p><code>PR [#556](adamchainz/time-machine#556) &lt;https://github.com/adamchainz/time-machine/issues/556&gt;</code>__.</p>
</li>
<li>
<p>Import date and time functions once in the C extension.</p>
<p>This should improve speed a little bit, and avoid segmentation faults when the functions have been swapped out, such as when freezegun is in effect.
(time-machine still won’t apply if freezegun is in effect.)</p>
<p><code>PR [#555](adamchainz/time-machine#555) &lt;https://github.com/adamchainz/time-machine/issues/555&gt;</code>__.</p>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/adamchainz/time-machine/commit/c64e79f89bdb02ed01866eb9f74c86006606ecd6"><code>c64e79f</code></a> Version 2.19.0</li>
<li><a href="https://github.com/adamchainz/time-machine/commit/aa78214ad6415c96d8e2f6e350457811927e9f3f"><code>aa78214</code></a> Edit changelog</li>
<li><a href="https://github.com/adamchainz/time-machine/commit/d4c2e643b7870728ca0b09ea79053d8da5ae7289"><code>d4c2e64</code></a> Edit changelog</li>
<li><a href="https://github.com/adamchainz/time-machine/commit/c271664fed8bdd4617f2cdea83e64aec621b449c"><code>c271664</code></a> Tweak title capitalization</li>
<li><a href="https://github.com/adamchainz/time-machine/commit/c9775a3c2aed74619db909110152f28dc9cae4cf"><code>c9775a3</code></a> Add asynchronous context manager support (<a href="https://redirect.github.com/adamchainz/time-machine/issues/556">#556</a>)</li>
<li><a href="https://github.com/adamchainz/time-machine/commit/130333ed769a2c9e2b87e30dd68414f00dfdde9b"><code>130333e</code></a> Add marker support to pytest plugin (<a href="https://redirect.github.com/adamchainz/time-machine/issues/499">#499</a>)</li>
<li><a href="https://github.com/adamchainz/time-machine/commit/428491ed7abc2ce9bc440b2898adea73a676128a"><code>428491e</code></a> Import more once in C extension (<a href="https://redirect.github.com/adamchainz/time-machine/issues/555">#555</a>)</li>
<li>See full diff in <a href="https://github.com/adamchainz/time-machine/compare/2.18.0...2.19.0">compare view</a></li>
</ul>
</details>
<br />

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Author: dependabot[bot]

changelogs/unreleased/9453-dependabot.yml

@@ -0,0 +1,5 @@
+change-type: patch
+description: Bump time-machine from 2.18.0 to 2.19.0
+destination-branches:
+- iso8
+sections: {}

requirements.txt

@@ -48,7 +48,7 @@ sphinxcontrib-serializinghtml==2.0.0
 sphinx-design==0.6.1
 Sphinx-Substitution-Extensions==2025.6.6
 texttable==1.7.0
-time-machine==2.18.0
+time-machine==2.19.0
 toml==0.10.2
 tornado==6.5.2
 types-python-dateutil==2.9.0.20250809