Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.15 to
1.26.17.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>1.26.17</h2>
<ul>
<li>Added the <code>Cookie</code> header to the list of headers to strip
from requests when redirecting to a different host. As before, different
headers can be set via <code>Retry.remove_headers_on_redirect</code>.
(GHSA-v845-jxx5-vc9f)</li>
</ul>
<h2>1.26.16</h2>
<ul>
<li>Fixed thread-safety issue where accessing a <code>PoolManager</code>
with many distinct origins would cause connection pools to be closed
while requests are in progress (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2954">#2954</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>1.26.17 (2023-10-02)</h1>
<ul>
<li>Added the <code>Cookie</code> header to the list of headers to strip
from requests when redirecting to a different host. As before, different
headers can be set via <code>Retry.remove_headers_on_redirect</code>.
(<code>[#3139](https://github.com/urllib3/urllib3/issues/3139)
<https://github.com/urllib3/urllib3/pull/3139></code>_)</li>
</ul>
<h1>1.26.16 (2023-05-23)</h1>
<ul>
<li>Fixed thread-safety issue where accessing a <code>PoolManager</code>
with many distinct origins
would cause connection pools to be closed while requests are in progress
(<code>[#2954](https://github.com/urllib3/urllib3/issues/2954)
<https://github.com/urllib3/urllib3/pull/2954></code>_)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="c9016bf464"><code>c9016bf</code></a>
Release 1.26.17</li>
<li><a
href="01220354d3"><code>0122035</code></a>
Backport GHSA-v845-jxx5-vc9f (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3139">#3139</a>)</li>
<li><a
href="e63989f97d"><code>e63989f</code></a>
Fix installing <code>brotli</code> extra on Python 2.7</li>
<li><a
href="2e7a24d087"><code>2e7a24d</code></a>
[1.26] Configure OS for RTD to fix building docs</li>
<li><a
href="57181d6ea9"><code>57181d6</code></a>
[1.26] Improve error message when calling urllib3.request() (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3058">#3058</a>)</li>
<li><a
href="3c0148048a"><code>3c01480</code></a>
[1.26] Run coverage even with failed jobs</li>
<li><a
href="d94029b7e2"><code>d94029b</code></a>
Release 1.26.16</li>
<li><a
href="18e92145e9"><code>18e9214</code></a>
Use trusted publishing for PyPI</li>
<li><a
href="d25cf83bba"><code>d25cf83</code></a>
[1.26] Fix invalid test_ssl_failure_midway_through_conn</li>
<li><a
href="25cca38949"><code>25cca38</code></a>
[1.26] Fix test_ssl_object_attributes</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/1.26.15...1.26.17">compare
view</a></li>
</ul>
</details>
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