chore(deps): update dependency pillow to v12.1.1 [security] (#136)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [pillow](https://redirect.github.com/python-pillow/Pillow)
([changelog](https://redirect.github.com/python-pillow/Pillow/releases))
| `12.1.0` → `12.1.1` |
![age](https://developer.mend.io/api/mc/badges/age/pypi/pillow/12.1.1?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/pillow/12.1.0/12.1.1?slim=true)
|

### GitHub Vulnerability Alerts

####
[CVE-2026-25990](https://redirect.github.com/python-pillow/Pillow/security/advisories/GHSA-cfh3-3jmp-rvhc)

### Impact
An out-of-bounds write may be triggered when loading a specially crafted
PSD image. Pillow >= 10.3.0 users are affected.

### Patches
Pillow 12.1.1 will be released shortly with a fix for this.

### Workarounds
`Image.open()` has a `formats` parameter that can be used to prevent PSD
images from being opened.

### References
Pillow 12.1.1 will add release notes at
https://pillow.readthedocs.io/en/stable/releasenotes/index.html

---

### Release Notes

<details>
<summary>python-pillow/Pillow (pillow)</summary>

###
[`v12.1.1`](https://redirect.github.com/python-pillow/Pillow/compare/12.1.0...12.1.1)

[Compare
Source](https://redirect.github.com/python-pillow/Pillow/compare/12.1.0...12.1.1)

</details>

---

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