Bump cherry-picker from 2.5.0 to 2.6.0 (aio-libs#11444)

Bumps [cherry-picker](https://github.com/python/cherry-picker) from
2.5.0 to 2.6.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/python/cherry-picker/releases">cherry-picker's
releases</a>.</em></p>
<blockquote>
<h2>cherry-picker-v2.6.0</h2>
<!-- raw HTML omitted -->
<h2>What's Changed</h2>
<ul>
<li>Check commit count against <code>upstream</code> by <a
href="https://github.com/webknjaz"><code>@​webknjaz</code></a> in <a
href="https://redirect.github.com/python/cherry-picker/pull/156">python/cherry-picker#156</a></li>
<li>Use PEP 639 licence expression and remove deprecated Trove
classifier by <a
href="https://github.com/hugovk"><code>@​hugovk</code></a> in <a
href="https://redirect.github.com/python/cherry-picker/pull/160">python/cherry-picker#160</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/python/cherry-picker/compare/cherry-picker-v2.5.0...cherry-picker-v2.6.0">https://github.com/python/cherry-picker/compare/cherry-picker-v2.5.0...cherry-picker-v2.6.0</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/python/cherry-picker/blob/main/CHANGELOG.md">cherry-picker's
changelog</a>.</em></p>
<blockquote>
<h2>2.6.0</h2>
<ul>
<li>Check commit count against <code>upstream</code> by <a
href="https://github.com/webknjaz"><code>@​webknjaz</code></a> in <a
href="https://redirect.github.com/python/cherry-picker/pull/156">python/cherry-picker#156</a></li>
<li>Use PEP 639 licence expression and remove deprecated Trove
classifier by <a
href="https://github.com/hugovk"><code>@​hugovk</code></a> in <a
href="https://redirect.github.com/python/cherry-picker/pull/160">python/cherry-picker#160</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/cherry-picker/commit/beb193972a94efbc5e6e7ef6cbc8bed94ae666ae"><code>beb1939</code></a>
Update changelog for 2.6.0 (<a
href="https://redirect.github.com/python/cherry-picker/issues/161">#161</a>)</li>
<li><a
href="https://github.com/python/cherry-picker/commit/cdae2896320b31c36b5f1db339a9eb2448ccf7a6"><code>cdae289</code></a>
Check commit count against <code>upstream</code> (<a
href="https://redirect.github.com/python/cherry-picker/issues/156">#156</a>)</li>
<li><a
href="https://github.com/python/cherry-picker/commit/3c84cda0c85a73171a1d1160d264d18a04bdff95"><code>3c84cda</code></a>
Use PEP 639 licence expression and remove deprecated Trove classifier
(<a
href="https://redirect.github.com/python/cherry-picker/issues/160">#160</a>)</li>
<li><a
href="https://github.com/python/cherry-picker/commit/3a6a9eaea49e113a3f348e73d13b0a543de69158"><code>3a6a9ea</code></a>
[pre-commit.ci] pre-commit autoupdate (<a
href="https://redirect.github.com/python/cherry-picker/issues/157">#157</a>)</li>
<li><a
href="https://github.com/python/cherry-picker/commit/cb7fdc1ec0f8b44f236b3f52d1dcb70b8a9e85e0"><code>cb7fdc1</code></a>
Revert &quot;Ignore Jinja2 CVE warning in <code>safety</code> dep (<a
href="https://redirect.github.com/python/cherry-picker/issues/129">#129</a>)&quot;
after upstream fix ...</li>
<li>See full diff in <a
href="https://github.com/python/cherry-picker/compare/cherry-picker-v2.5.0...cherry-picker-v2.6.0">compare
view</a></li>
</ul>
</details>
<br />


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requirements/constraints.txt

@@ -43,7 +43,7 @@ cfgv==3.4.0
     # via pre-commit
 charset-normalizer==3.4.3
     # via requests
-cherry-picker==2.5.0
+cherry-picker==2.6.0
     # via -r requirements/dev.in
 click==8.1.8
     # via

requirements/dev.txt

@@ -43,7 +43,7 @@ cfgv==3.4.0
     # via pre-commit
 charset-normalizer==3.4.3
     # via requests
-cherry-picker==2.5.0
+cherry-picker==2.6.0
     # via -r requirements/dev.in
 click==8.1.8
     # via