Build: Bump cachetools from 5.5.2 to 6.1.0 (apache#2101)

Bumps [cachetools](https://github.com/tkem/cachetools) from 5.5.2 to
6.1.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst">cachetools's
changelog</a>.</em></p>
<blockquote>
<h1>v6.1.0 (2025-06-16)</h1>
<ul>
<li>
<p>Improve <code>LFUCache</code> insertion performance by switching to
an
implementation based on the <code>cacheing
&lt;https://pypi.org/project/cacheing/&gt;</code>_ library.</p>
</li>
<li>
<p>Update CI environment.</p>
</li>
</ul>
<h1>v6.0.0 (2025-05-23)</h1>
<ul>
<li>
<p>Require Python 3.9 or later (breaking change).</p>
</li>
<li>
<p>Remove <code>MRUCache</code> and the <code>@func.mru_cache</code>
decorator (breaking
change).</p>
</li>
<li>
<p>Add an optional <code>condition</code> parameter to the
<code>@cached</code> and
<code>@cachedmethod</code> decorators, which, when used with a
<code>threading.Condition</code> instance, should improve <code>cache
stampede &lt;https://en.wikipedia.org/wiki/Cache_stampede&gt;</code>_
issues in massively
parallel environments.  Note that this will inflict some performance
penalty, and therefore has to be enabled explicitly.</p>
</li>
<li>
<p>Convert the <code>cachetools.func</code> decorators to use a
<code>threading.Condition</code> instance to deal with <code>cache
stampede &lt;https://en.wikipedia.org/wiki/Cache_stampede&gt;</code>_
issues. Note that
this <em>may</em> result in a noticable performance degradation,
depending
on your actual use case.</p>
</li>
<li>
<p>Deprecate support for <code>cache(self)</code> returning
<code>None</code> to suppress
caching with the <code>@cachedmethod</code> decorator.</p>
</li>
<li>
<p>Improve documentation.</p>
</li>
<li>
<p>Update CI environment.</p>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/tkem/cachetools/commit/bb6d71a745785429b14aae30b7752f4765dc35c3"><code>bb6d71a</code></a>
Release v6.1.0.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/77a9c59e3324496a79e6c4d5a7b5bfdb9a7f7f42"><code>77a9c59</code></a>
Fix <a
href="https://redirect.github.com/tkem/cachetools/issues/260">#260</a>:
Use LFUCache implementation based on Blake Reid's &quot;cacheing&quot;
library.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/b1d4eb2972ca8f0ab49e22eae3bb47c1eb8b552c"><code>b1d4eb2</code></a>
Bump codecov/codecov-action from 5.4.2 to 5.4.3</li>
<li><a
href="https://github.com/tkem/cachetools/commit/820b154494e91aa5bfe63a3fa2033c63a9c84603"><code>820b154</code></a>
Refactor <a
href="https://github.com/cachedmethod"><code>@​cachedmethod</code></a>
unit tests.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/e497575fcb4d29dfb773824956539215db964059"><code>e497575</code></a>
Release v6.0.0.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/0a8f391979f72f3237be8cdb79d6128dd5caeb93"><code>0a8f391</code></a>
Update related projects section.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/3afef37bdbf8fa8f6dddbc303ecd91c9fd32ab01"><code>3afef37</code></a>
Pre-release v6.0.0b4.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/34815dd03f5954272e0f06c1571e871ed1cfb5f4"><code>34815dd</code></a>
Update documentation for v6.0.0.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/8854b5075a63adee657a9f32485b026b6e33a29a"><code>8854b50</code></a>
Add intersphinx extension.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/0af4a07f371120521370a11e38473e21ec2ea6a1"><code>0af4a07</code></a>
Bump codecov/codecov-action from 5.4.0 to 5.4.2</li>
<li>Additional commits viewable in <a
href="https://github.com/tkem/cachetools/compare/v5.5.2...v6.1.0">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=cachetools&package-manager=pip&previous-version=5.5.2&new-version=6.1.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

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

Author: dependabot[bot]