Update dependency test/httpx to v0.27.0 (#62)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [test/httpx](https://togithub.com/encode/httpx)
([changelog](https://togithub.com/encode/httpx/blob/master/CHANGELOG.md))
| `==0.26.0` -> `==0.27.0` |
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|
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|
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|
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---

### Release Notes

<details>
<summary>encode/httpx (test/httpx)</summary>

###
[`v0.27.0`](https://togithub.com/encode/httpx/blob/HEAD/CHANGELOG.md#0270-21st-February-2024)

[Compare
Source](https://togithub.com/encode/httpx/compare/0.26.0...0.27.0)

##### Deprecated

- The `app=...` shortcut has been deprecated. Use the explicit style of
`transport=httpx.WSGITransport()` or `transport=httpx.ASGITransport()`
instead.

##### Fixed

- Respect the `http1` argument while configuring proxy transports.
([#&#8203;3023](https://togithub.com/encode/httpx/issues/3023))
- Fix RFC 2069 mode digest authentication.
([#&#8203;3045](https://togithub.com/encode/httpx/issues/3045))

</details>

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Author: lettuce-bot[bot]

pyproject.toml

@@ -31,7 +31,7 @@ style = [
 
 test = [
   "pytest==8.0.1",
-  "httpx==0.26.0"
+  "httpx==0.27.0"
 ]
 
 types = [