chore(deps): update dependency flake8 to v7 (#193)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [flake8](https://togithub.com/pycqa/flake8)
([changelog](https://flake8.pycqa.org/en/latest/release-notes/index.html))
| dev | major | `6.1.0` -> `7.0.0` |

---

### Release Notes

<details>
<summary>pycqa/flake8 (flake8)</summary>

### [`v7.0.0`](https://togithub.com/pycqa/flake8/compare/6.1.0...7.0.0)

[Compare
Source](https://togithub.com/pycqa/flake8/compare/6.1.0...7.0.0)

</details>

---

### Configuration

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rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
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---

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---

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pyproject.toml

@@ -44,7 +44,7 @@ Django = ">=3.2.19,<5.1"
 descope = "^1.5.1"
 
 [tool.poetry.group.dev.dependencies]
-flake8 = "6.1.0"
+flake8 = "7.0.0"
 black = "23.11.0"
 pre-commit = "3.6.0"
 liccheck = "0.9.1"