Build(deps-py): Update cachetools requirement from <7,>=4 to >=4,<8 in the dependencies group (#3896)

Updates the requirements on
[cachetools](https://github.com/tkem/cachetools) to permit the latest
version.
Updates `cachetools` to 7.0.0
<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>v7.0.0 (2026-02-01)</h1>
<ul>
<li>
<p>Require Python 3.10 or later (breaking change).</p>
</li>
<li>
<p>Drop support for passing <code>info</code> as fourth positional
parameter to
<code>@cached</code> (breaking change).</p>
</li>
<li>
<p>Drop support for <code>cache(self)</code> returning <code>None</code>
with
<code>@cachedmethod</code> (breaking change).</p>
</li>
<li>
<p>Convert the <code>@cachedmethod</code> wrappers to descriptors,
deprecating
its use with class methods and instances that do not provide a
mutable <code>__dict__</code> attribute (potentially breaking
change).</p>
</li>
<li>
<p>Convert the previously undocumented <code>@cachedmethod</code>
attributes
(<code>cache</code>, <code>cache_lock</code>, etc.) to properties for
instance
methods, providing official support and documentation (potentially
breaking change).</p>
</li>
<li>
<p>Add an optional <code>info</code> parameter to the
<code>@cachedmethod</code>
decorator for reporting per-instance cache statistics.  Note that
this requires the instance's <code>__dict__</code> attribute to be a
mutable
mapping.</p>
</li>
</ul>
<h1>v6.2.6 (2026-01-27)</h1>
<ul>
<li>
<p>Improve typedkey performance.</p>
</li>
<li>
<p>Minor documentation improvements.</p>
</li>
<li>
<p>Minor testing improvements.</p>
</li>
<li>
<p>Minor code readability improvements.</p>
</li>
</ul>
<h1>v6.2.5 (2026-01-25)</h1>
<ul>
<li>
<p>Improve documentation regarding <code>@cachedmethod</code> with
<code>lock</code>
parameter.</p>
</li>
<li>
<p>Add test cases for cache stampede scenarios.</p>
</li>
<li>
<p>Update CI environment.</p>
</li>
</ul>
<p>v6.2.4 (2025-12-15)</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/tkem/cachetools/commit/28bbcba53fbd939858ed02f52579e362e3b4fce9"><code>28bbcba</code></a>
Release v7.0.0.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/45776b23b1bf33dbad62bd74290f64ed205ce669"><code>45776b2</code></a>
Minor code and documentation improvements.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/51a70a9740981883c36bd1812b7cacd707ea264e"><code>51a70a9</code></a>
Fix <a
href="https://redirect.github.com/tkem/cachetools/issues/357">#357</a>:
Update documentation.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/bb72c21aab48bdd720fbe173ff1938bd5d923e43"><code>bb72c21</code></a>
Fix <a
href="https://redirect.github.com/tkem/cachetools/issues/357">#357</a>:
Add cache_info() support for <a
href="https://github.com/cachedmethod"><code>@​cachedmethod</code></a>.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/86352aed2bedb23aa0cc461a58e76bd667617eaa"><code>86352ae</code></a>
Fix <a
href="https://redirect.github.com/tkem/cachetools/issues/357">#357</a>:
Convert <a
href="https://github.com/cachedmethod"><code>@​cachedmethod</code></a>
decorators to descriptors.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/263cf3185fcec33aceb93704252e5f34e8f9d3e3"><code>263cf31</code></a>
Prepare v7.0.0.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/59d4db25cd7e75a49886bdf5e1a01665811b935f"><code>59d4db2</code></a>
Drop support for cache(self) returning None in <a
href="https://github.com/cachedmethod"><code>@​cachedmethod</code></a>.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/c933a9767348d43a570397de47455b98ecd6c191"><code>c933a97</code></a>
Drop support for passing &quot;info&quot; as fourth positional parameter
of <a href="https://github.com/cached"><code>@​cached</code></a>.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/ae3d6bd7954ed14385501b40af6cfb486750f825"><code>ae3d6bd</code></a>
Drop support for Python 3.9.</li>
<li><a
href="https://github.com/tkem/cachetools/commit/a12c3b05a179f6d15e926784652935133d376755"><code>a12c3b0</code></a>
Bump actions/checkout from 6.0.1 to 6.0.2</li>
<li>Additional commits viewable in <a
href="https://github.com/tkem/cachetools/compare/v4.0.0...v7.0.0">compare
view</a></li>
</ul>
</details>
<br />


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pyproject.toml

@@ -82,7 +82,7 @@ dependencies = [
   "matplotlib",
   "scipy",
   "deprecation>=2.0.6",
-  "cachetools>=4,<7",
+  "cachetools>=4,<8",
   "bitstring>=3.1.9,<5",
 ]