Update vulture requirement from 2.10 to 2.14 in /backend (#1078)

Updates the requirements on
[vulture](https://github.com/jendrikseipp/vulture) to permit the latest
version.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/jendrikseipp/vulture/releases">vulture's
releases</a>.</em></p>
<blockquote>
<h2>2.14 (2024-12-08)</h2>
<ul>
<li>Improve reachability analysis (kreathon, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/270">#270</a>,
<a
href="https://redirect.github.com/jendrikseipp/vulture/issues/302">#302</a>).</li>
<li>Add type hints for <code>get_unused_code</code> and the fields of
the <code>Item</code> class (John Doknjas, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/361">#361</a>).</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/jendrikseipp/vulture/blob/main/CHANGELOG.md">vulture's
changelog</a>.</em></p>
<blockquote>
<h1>2.14 (2024-12-08)</h1>
<ul>
<li>Improve reachability analysis (kreathon, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/270">#270</a>,
<a
href="https://redirect.github.com/jendrikseipp/vulture/issues/302">#302</a>).</li>
<li>Add type hints for <code>get_unused_code</code> and the fields of
the <code>Item</code> class (John Doknjas, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/361">#361</a>).</li>
</ul>
<h1>2.13 (2024-10-02)</h1>
<ul>
<li>Add support for Python 3.13 (Jendrik Seipp, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/369">#369</a>).</li>
<li>Add PyPI and conda-forge badges to README file (Trevor James Smith,
<a
href="https://redirect.github.com/jendrikseipp/vulture/issues/356">#356</a>).</li>
<li>Include <code>tests/**/*.toml</code> in sdist (Colin Watson).</li>
</ul>
<h1>2.12 (2024-09-17)</h1>
<ul>
<li>Use <code>ruff</code> for linting and formatting (Anh Trinh, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/347">#347</a>,
<a
href="https://redirect.github.com/jendrikseipp/vulture/issues/349">#349</a>).</li>
<li>Replace <code>tox</code> by <code>pre-commit</code> for linting and
formatting (Anh Trinh, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/349">#349</a>).</li>
<li>Add <code>--config</code> flag to specify path to pyproject.toml
configuration file (Glen Robertson, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/352">#352</a>).</li>
</ul>
<h1>2.11 (2024-01-06)</h1>
<ul>
<li>Switch to tomllib/tomli to support heterogeneous arrays (Sebastian
Csar, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/340">#340</a>).</li>
<li>Bump flake8, flake8-comprehensions and flake8-bugbear (Sebastian
Csar, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/341">#341</a>).</li>
<li>Provide whitelist parity for <code>MagicMock</code> and
<code>Mock</code> (maxrake, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/342">#342</a>).</li>
</ul>
<h1>2.10 (2023-10-06)</h1>
<ul>
<li>Drop support for Python 3.7 (Jendrik Seipp, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/323">#323</a>).</li>
<li>Add support for Python 3.12 (Jendrik Seipp, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/332">#332</a>).</li>
<li>Use <code>end_lineno</code> AST attribute to obtain more accurate
line counts (Jendrik Seipp).</li>
</ul>
<h1>2.9.1 (2023-08-21)</h1>
<ul>
<li>Use exit code 0 for <code>--help</code> and <code>--version</code>
again (Jendrik Seipp, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/321">#321</a>).</li>
</ul>
<h1>2.9 (2023-08-20)</h1>
<ul>
<li>Use exit code 3 when dead code is found (whosayn, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/319">#319</a>).</li>
<li>Treat non-supported decorator names as &quot;@&quot; instead of
crashing (Llandy3d and Jendrik Seipp, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/284">#284</a>).</li>
<li>Drop support for Python 3.6 (Jendrik Seipp).</li>
</ul>
<h1>2.8 (2023-08-10)</h1>
<ul>
<li>Add <code>UnicodeEncodeError</code> exception handling to
<code>core.py</code> (milanbalazs, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/299">#299</a>).</li>
<li>Add whitelist for <code>Enum</code> attributes <code>_name_</code>
and <code>_value_</code> (Eugene Toder, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/305">#305</a>).</li>
<li>Run tests and add PyPI trove for Python 3.11 (Jendrik Seipp).</li>
</ul>
<h1>2.7 (2023-01-08)</h1>
<ul>
<li>Ignore <code>setup_module()</code>, <code>teardown_module()</code>,
etc. in pytest <code>test_*.py</code> files (Jendrik Seipp).</li>
<li>Add whitelist for
<code>socketserver.TCPServer.allow_reuse_address</code> (Ben
Elliston).</li>
<li>Clarify that <code>--exclude</code> patterns are matched against
absolute paths (Jendrik Seipp, <a
href="https://redirect.github.com/jendrikseipp/vulture/issues/260">#260</a>).</li>
</ul>
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</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/jendrikseipp/vulture/commit/e454d2ef39fc23e72549ff23a1a14e31c3a75605"><code>e454d2e</code></a>
Update version number to 2.14 for release.</li>
<li><a
href="https://github.com/jendrikseipp/vulture/commit/f7f3f747fad0a9da4b15a8e050ec89c8e8f88462"><code>f7f3f74</code></a>
Add release date.</li>
<li><a
href="https://github.com/jendrikseipp/vulture/commit/73df02f0d7c6634e0777a71315a71694cbec1263"><code>73df02f</code></a>
Add comment regarding pass_filenames.</li>
<li><a
href="https://github.com/jendrikseipp/vulture/commit/84d32ca39508112738a39623f10950c72e0d9d6e"><code>84d32ca</code></a>
Enable more style checks.</li>
<li><a
href="https://github.com/jendrikseipp/vulture/commit/609f5f2193cf963bc13ef867441b3ec44b643ec5"><code>609f5f2</code></a>
Improve unreachable code analysis (<a
href="https://redirect.github.com/jendrikseipp/vulture/issues/302">#302</a>)</li>
<li><a
href="https://github.com/jendrikseipp/vulture/commit/9f44d4c2d2d1299757db1a3817123c6b70fa2c07"><code>9f44d4c</code></a>
Drop obsolete 'style' tox environment.</li>
<li><a
href="https://github.com/jendrikseipp/vulture/commit/f0ab7baa19e7571a0374aa17caa6e198f1423800"><code>f0ab7ba</code></a>
Cosmetics.</li>
<li><a
href="https://github.com/jendrikseipp/vulture/commit/798809a43b4f79997be397bb7aa3a2ad27ed5e66"><code>798809a</code></a>
Add type hints for the <code>get_unused_code</code> function and the
fields of <code>Item</code>. (...</li>
<li><a
href="https://github.com/jendrikseipp/vulture/commit/d21ad35d53bfa32ec8f090de6bb9f4af80076365"><code>d21ad35</code></a>
Update version number to 2.13 for release.</li>
<li><a
href="https://github.com/jendrikseipp/vulture/commit/ea66db28999ee141b71bf7021299498a96a66130"><code>ea66db2</code></a>
Add release date.</li>
<li>Additional commits viewable in <a
href="https://github.com/jendrikseipp/vulture/compare/v2.10...v2.14">compare
view</a></li>
</ul>
</details>
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backend/Pipfile

@@ -42,7 +42,7 @@ pytest-asyncio = "0.21.2"
 pytest-cov = "4.0.0"
 pytest-xdist = "3.2.1"
 ruff = "0.9.1"
-vulture = "2.10"
+vulture = "2.14"
 
 [requires]
 python_version = "3.12"