fix(deps): update dependency fastapi to v0.138.0 (#636)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Adoption](https://docs.renovatebot.com/merge-confidence/) |
[Passing](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|---|---|
| [fastapi](https://redirect.github.com/fastapi/fastapi)
([changelog](https://fastapi.tiangolo.com/release-notes/)) | `==0.137.2`
→ `==0.138.0` |
![age](https://developer.mend.io/api/mc/badges/age/pypi/fastapi/0.138.0?slim=true)
|
![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/fastapi/0.138.0?slim=true)
|
![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/fastapi/0.137.2/0.138.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/fastapi/0.137.2/0.138.0?slim=true)
|

---

### Release Notes

<details>
<summary>fastapi/fastapi (fastapi)</summary>

###
[`v0.138.0`](https://redirect.github.com/fastapi/fastapi/releases/tag/0.138.0)

[Compare
Source](https://redirect.github.com/fastapi/fastapi/compare/0.137.2...0.138.0)

##### Features

- ✨ Add support for `app.frontend("/", directory="dist")` and
`router.frontend("/", directory="dist")`. PR
[#&#8203;15800](https://redirect.github.com/fastapi/fastapi/pull/15800)
by [@&#8203;tiangolo](https://redirect.github.com/tiangolo).
- Read the docs:
[Frontend](https://fastapi.tiangolo.com/tutorial/frontend/).

##### Docs

- 📝 Fix typo in release notes. PR
[#&#8203;15807](https://redirect.github.com/fastapi/fastapi/pull/15807)
by [@&#8203;tiangolo](https://redirect.github.com/tiangolo).
- 📝 Add `app.frontend()` instructions to Agent Library Skill. PR
[#&#8203;15805](https://redirect.github.com/fastapi/fastapi/pull/15805)
by [@&#8203;tiangolo](https://redirect.github.com/tiangolo).
- 📝 Update release notes link. PR
[#&#8203;15802](https://redirect.github.com/fastapi/fastapi/pull/15802)
by [@&#8203;tiangolo](https://redirect.github.com/tiangolo).
- ✏️ Update white space characters in bigger apps. PR
[#&#8203;15801](https://redirect.github.com/fastapi/fastapi/pull/15801)
by [@&#8203;tiangolo](https://redirect.github.com/tiangolo).
- ✏️ Fix grammar, typos, and broken links in docs. PR
[#&#8203;15694](https://redirect.github.com/fastapi/fastapi/pull/15694)
by [@&#8203;YuriiMotov](https://redirect.github.com/YuriiMotov).

##### Translations

- 🌐 Enable Hindi docs translations. PR
[#&#8203;15554](https://redirect.github.com/fastapi/fastapi/pull/15554)
by [@&#8203;YuriiMotov](https://redirect.github.com/YuriiMotov).

##### Internal

- 🐛 Fix failing test, update format for raised errors. PR
[#&#8203;15804](https://redirect.github.com/fastapi/fastapi/pull/15804)
by [@&#8203;tiangolo](https://redirect.github.com/tiangolo).
- 👷 Fix test-alls-green. PR
[#&#8203;15803](https://redirect.github.com/fastapi/fastapi/pull/15803)
by [@&#8203;tiangolo](https://redirect.github.com/tiangolo).
- 🔧 Enable checking `release-notes.md` for typos. PR
[#&#8203;15796](https://redirect.github.com/fastapi/fastapi/pull/15796)
by [@&#8203;YuriiMotov](https://redirect.github.com/YuriiMotov).
- 📝 Tweak wording about deploying to FastAPI Cloud. PR
[#&#8203;15793](https://redirect.github.com/fastapi/fastapi/pull/15793)
by [@&#8203;tiangolo](https://redirect.github.com/tiangolo).
- 🔨 Use `gpt-5.5` model in `translate.py`, specify `-chat` to avoid
warnings. PR
[#&#8203;15792](https://redirect.github.com/fastapi/fastapi/pull/15792)
by [@&#8203;YuriiMotov](https://redirect.github.com/YuriiMotov).

</details>

---

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pyproject.toml

@@ -5,7 +5,7 @@ description = "BSS file server API"
 authors = [{ name = "Bence Csik", email = "22349790+csikb@users.noreply.github.com" }]
 requires-python = "==3.14.6"
 dependencies = [
-    "fastapi[standard-no-fastapi-cloud-cli]==0.137.2",
+    "fastapi[standard-no-fastapi-cloud-cli]==0.138.0",
     "pillow==12.2.0",
     # this should be part of standard-no-fastapi-cloud-cli, but is missing:
     # see: https://github.com/fastapi/fastapi/blob/6fae64ff49e8328048872714652a4dfa15406e41/pyproject.toml#L94-L98