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

[![Mend
Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

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/)
|

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

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

#### New Contributors

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

**Full Changelog**:
tox-dev/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
[https://github.com/platformdirs/platformdirs/pull/256](https://togithub.com/platformdirs/platformdirs/pull/256)
- Add convenience methods to `PlatformDirsAPI` that allow iterating over
both user and site dirs/paths. by
[@&#8203;SpaceshipOperations](https://togithub.com/SpaceshipOperations)
in
[https://github.com/platformdirs/platformdirs/pull/258](https://togithub.com/platformdirs/platformdirs/pull/258)

#### New Contributors

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

**Full Changelog**:
tox-dev/platformdirs@4.1.0...4.2.0

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

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

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Mend
Renovate](https://www.mend.io/free-developer-tools/renovate/). View
repository job log
[here](https://developer.mend.io/github/googleapis/sdk-platform-java).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4zMDEuNCIsInVwZGF0ZWRJblZlciI6IjM3LjMxMy4xIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->

Co-authored-by: Alice <[email protected]>

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