chore(deps-dev): Update flake8 requirement from 7.0.0 to 7.1.0 (#758)

Updates the requirements on [flake8](https://github.com/pycqa/flake8) to
permit the latest version.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/PyCQA/flake8/commit/65a38c42a7f1a05ff8d99b313160754fc9b7a0d8"><code>65a38c4</code></a>
Release 7.1.0</li>
<li><a
href="https://github.com/PyCQA/flake8/commit/34c97e046a459b0682c82660f16c620369abd6b7"><code>34c97e0</code></a>
Merge pull request <a
href="https://github.com/pycqa/flake8/issues/1939">#1939</a>
from PyCQA/new-pycodestyle</li>
<li><a
href="https://github.com/PyCQA/flake8/commit/defd315175b7b77472affb61a410e5720dabdc1a"><code>defd315</code></a>
latest pycodestyle</li>
<li><a
href="https://github.com/PyCQA/flake8/commit/408d4d695c71b0b232cea576876e757c87a3379c"><code>408d4d6</code></a>
Merge pull request <a
href="https://github.com/pycqa/flake8/issues/1930">#1930</a>
from mzagol/patch-1</li>
<li><a
href="https://github.com/PyCQA/flake8/commit/866ad729c64eea359960a8ac4e3f1201104ee55c"><code>866ad72</code></a>
Add --extend-exclude to the TOC</li>
<li><a
href="https://github.com/PyCQA/flake8/commit/33e508307ac4545a45472fdc32c6eaadbc7b9580"><code>33e5083</code></a>
Merge pull request <a
href="https://github.com/pycqa/flake8/issues/1923">#1923</a>
from Viicos/entry-points-docs</li>
<li><a
href="https://github.com/PyCQA/flake8/commit/6659b213c9aa8fa49235e13a365fcd34f58cbc6b"><code>6659b21</code></a>
Fix toctree ordering in index</li>
<li><a
href="https://github.com/PyCQA/flake8/commit/ba0f56610adbd4d8733772ce1c63efcab1b70079"><code>ba0f566</code></a>
Use explicit external references</li>
<li><a
href="https://github.com/PyCQA/flake8/commit/350f2545fd3ec75640a1605e4995a2f921e8b38b"><code>350f254</code></a>
Use explicit external references</li>
<li><a
href="https://github.com/PyCQA/flake8/commit/49f52a8598d8a934b07f367a1b3ad87dbe51be5b"><code>49f52a8</code></a>
Update documentation regarding entry points</li>
<li>Additional commits viewable in <a
href="https://github.com/pycqa/flake8/compare/7.0.0...7.1.0">compare
view</a></li>
</ul>
</details>
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pyproject.toml

@@ -80,7 +80,7 @@ chardet = "^5.1"
 # pin to exact versions, if the tool/lib/plugin is process-relevant
 coverage = "7.5.3"
 ddt = "1.7.2"
-flake8 = { version = "7.0.0", python = ">=3.8.1" }
+flake8 = { version = "7.1.0", python = ">=3.8.1" }
 flake8-annotations = { version = "3.1.1", python = ">=3.8.1" }
 flake8-bugbear = { version = "24.4.26", python = ">=3.8.1" }
 flake8-isort = "6.1.1"