chore(deps-dev): bump isort from 5.9.1 to 5.9.2 (#514)

Bumps [isort](https://github.com/pycqa/isort) from 5.9.1 to 5.9.2.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/pycqa/isort/releases">isort's releases</a>.</em></p>
<blockquote>
<h3>5.9.2 July 8th 2021</h3>
<ul>
<li>Improved behavior of <code>isort --check --atomic</code> against Cython files.</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1769">#1769</a>: Future imports added below assignments when no other imports present.</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1772">#1772</a>: skip-gitignore will check files not in the git repository.</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1762">#1762</a>: in some cases when skip-gitignore is set, isort fails to skip any files.</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1767">#1767</a>: Encoding issues surfacing when invalid characters set in <code>__init__.py</code> files during placement.</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1771">#1771</a>: Improved handling of skips against named streamed in content.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/PyCQA/isort/blob/main/CHANGELOG.md">isort's changelog</a>.</em></p>
<blockquote>
<h3>5.9.2 July 8th 2021</h3>
<ul>
<li>Improved behavior of <code>isort --check --atomic</code> against Cython files.</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1769">#1769</a>: Future imports added below assignments when no other imports present.</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1772">#1772</a>: skip-gitignore will check files not in the git repository.</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1762">#1762</a>: in some cases when skip-gitignore is set, isort fails to skip any files.</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1767">#1767</a>: Encoding issues surfacing when invalid characters set in <code>__init__.py</code> files during placement.</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1771">#1771</a>: Improved handling of skips against named streamed in content.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/PyCQA/isort/commit/6e4281f018ff848226d8993596765b2285e1624f"><code>6e4281f</code></a> Add missing acknowledgements</li>
<li><a href="https://github.com/PyCQA/isort/commit/67494af69deee9d96dcce1c29cd7d2b4bcbf70cf"><code>67494af</code></a> Bump version to 5.9.2</li>
<li><a href="https://github.com/PyCQA/isort/commit/332cfd5959d7f641314bbded415b1dc514f41235"><code>332cfd5</code></a> Fixed <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1771">#1771</a>: Improved handling of skips against named streamed in content.</li>
<li><a href="https://github.com/PyCQA/isort/commit/034a5deb258dd409260c0c1ba0da7c91290ae438"><code>034a5de</code></a> Skip line for now</li>
<li><a href="https://github.com/PyCQA/isort/commit/0e808e0e6a3cc5f6343ba545c28a5f2d64168d3c"><code>0e808e0</code></a> Add pragma: no cover comment to git link branch</li>
<li><a href="https://github.com/PyCQA/isort/commit/83a9f687f8f7e229845ab0312458eaa56dc40159"><code>83a9f68</code></a> Closes <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1767">#1767</a>: Encoding issues surfacing when invalid characters set in  files...</li>
<li><a href="https://github.com/PyCQA/isort/commit/c2ca2e21a6830112d3b10b5de4c8d52c0db81163"><code>c2ca2e2</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1776">#1776</a> from PyCQA/issue/1767-encoding</li>
<li><a href="https://github.com/PyCQA/isort/commit/5fb77966c7c6670b0e5c29452b0a7aee87946ef4"><code>5fb7796</code></a> Fix issue <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1767">#1767</a>: codec error in <strong>init</strong> files without proper encoding set</li>
<li><a href="https://github.com/PyCQA/isort/commit/1c8df11e2476aa2ec06e7597b3f5d845ecbcd2a2"><code>1c8df11</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/pycqa/isort/issues/1775">#1775</a> from PyCQA/issue/1769</li>
<li><a href="https://github.com/PyCQA/isort/commit/c36414d25453fb9f2a14d26930283c263fc19aa0"><code>c36414d</code></a> Merge branch 'main' of <a href="https://github.com/timothycrosley/isort">https://github.com/timothycrosley/isort</a> into issue/1769</li>
<li>Additional commits viewable in <a href="https://github.com/pycqa/isort/compare/5.9.1...5.9.2">compare view</a></li>
</ul>
</details>
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pyproject.toml

@@ -39,7 +39,7 @@ flake8-debugger = "^4.0.0"
 flake8-fixme = "^1.1.1"
 flake8-isort = "^4.0.0"
 flake8-variables-names = "^0.0.4"
-isort = "^5.9.1"
+isort = "^5.9.2"
 pytest-cov = "^2.12.1"
 pytest-mock = "^3.5.1"
 pdoc3 = "^0.9.2"