deps: update dependency platformdirs to v4.2.1 (#2662)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [platformdirs](https://togithub.com/platformdirs/platformdirs) |
`==4.1.0` -> `==4.2.1` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/platformdirs/4.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/platformdirs/4.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/platformdirs/4.1.0/4.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/platformdirs/4.1.0/4.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

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---

### Release Notes

<details>
<summary>platformdirs/platformdirs (platformdirs)</summary>

###
[`v4.2.1`](https://togithub.com/platformdirs/platformdirs/releases/tag/4.2.1)

[Compare
Source](https://togithub.com/platformdirs/platformdirs/compare/4.2.0...4.2.1)

<!-- Release notes generated using configuration in .github/release.yml
at main -->

#### What's Changed

- Switch to ruff for formatting and use codespell and docformatter by
[@&#8203;gaborbernat](https://togithub.com/gaborbernat) in
[platformdirs/platformdirs#261
- Use hatch over tox by
[@&#8203;gaborbernat](https://togithub.com/gaborbernat) in
[platformdirs/platformdirs#262
- chore: various minor fixes by
[@&#8203;deronnax](https://togithub.com/deronnax) in
[platformdirs/platformdirs#263
- chore: update dead Microsoft's known folders documentation link by
[@&#8203;deronnax](https://togithub.com/deronnax) in
[platformdirs/platformdirs#267
- Allow working without ctypes by
[@&#8203;youknowone](https://togithub.com/youknowone) in
[platformdirs/platformdirs#275

#### New Contributors

- [@&#8203;deronnax](https://togithub.com/deronnax) made their first
contribution in
[platformdirs/platformdirs#263
- [@&#8203;youknowone](https://togithub.com/youknowone) made their first
contribution in
[platformdirs/platformdirs#275

**Full Changelog**:
platformdirs/platformdirs@4.2.0...4.2.1

###
[`v4.2.0`](https://togithub.com/platformdirs/platformdirs/releases/tag/4.2.0)

[Compare
Source](https://togithub.com/platformdirs/platformdirs/compare/4.1.0...4.2.0)

<!-- Release notes generated using configuration in .github/release.yml
at main -->

#### What's Changed

- Fix 2 typos about XDG_DATA_DIR by
[@&#8203;Freed-Wu](https://togithub.com/Freed-Wu) in
[platformdirs/platformdirs#256
- Add convenience methods to `PlatformDirsAPI` that allow iterating over
both user and site dirs/paths. by
[@&#8203;SpaceshipOperations](https://togithub.com/SpaceshipOperations)
in
[platformdirs/platformdirs#258

#### New Contributors

-
[@&#8203;SpaceshipOperations](https://togithub.com/SpaceshipOperations)
made their first contribution in
[platformdirs/platformdirs#258

**Full Changelog**:
platformdirs/platformdirs@4.1.0...4.2.0

</details>

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Co-authored-by: Alice <65933803+alicejli@users.noreply.github.com>

library_generation/requirements.txt

@@ -11,7 +11,7 @@ MarkupSafe==2.1.5
 mypy-extensions==1.0.0
 packaging==23.2
 pathspec==0.12.1
-platformdirs==4.1.0
+platformdirs==4.2.1
 PyYAML==6.0.1
 smmap==5.0.1
 typing==3.7.4.3