fix(deps): update module github.com/valyala/fasthttp to v1.50.0 (#1060)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [github.com/valyala/fasthttp](https://togithub.com/valyala/fasthttp) |
require | minor | `v1.49.0` -> `v1.50.0` |

---

### Release Notes

<details>
<summary>valyala/fasthttp (github.com/valyala/fasthttp)</summary>

###
[`v1.50.0`](https://togithub.com/valyala/fasthttp/releases/tag/v1.50.0)

[Compare
Source](https://togithub.com/valyala/fasthttp/compare/v1.49.0...v1.50.0)

- [`8cc5539`](https://togithub.com/valyala/fasthttp/commit/8cc5539) Fix
various request timeout issues (Erik Dubbelboer)
- [`34e7da1`](https://togithub.com/valyala/fasthttp/commit/34e7da1)
Allow connection close for custom streams
([#&#8203;1603](https://togithub.com/valyala/fasthttp/issues/1603))
(Armin Becher)
- [`8236f8d`](https://togithub.com/valyala/fasthttp/commit/8236f8d)
fasthttpproxy: fix doc examples (Oleksandr Redko)
- [`4ec5c5a`](https://togithub.com/valyala/fasthttp/commit/4ec5c5a)
docs: fix typos in comments and tests (Oleksandr Redko)
- [`9aa666e`](https://togithub.com/valyala/fasthttp/commit/9aa666e)
Enable gocritic linter; fix lint issues
([#&#8203;1612](https://togithub.com/valyala/fasthttp/issues/1612))
(Oleksandr Redko)

</details>

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go.mod

@@ -29,7 +29,7 @@ require (
 	github.com/sashabaranov/go-openai v1.15.3
 	github.com/tmc/langchaingo v0.0.0-20230910230029-9c8845b2b019
 	github.com/urfave/cli/v2 v2.25.7
-	github.com/valyala/fasthttp v1.49.0
+	github.com/valyala/fasthttp v1.50.0
 	google.golang.org/grpc v1.58.1
 	google.golang.org/protobuf v1.31.0
 	gopkg.in/yaml.v2 v2.4.0

go.sum

@@ -217,6 +217,8 @@ github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6Kllzaw
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasthttp v1.49.0 h1:9FdvCpmxB74LH4dPb7IJ1cOSsluR07XG3I1txXWwJpE=
 github.com/valyala/fasthttp v1.49.0/go.mod h1:k2zXd82h/7UZc3VOdJ2WaUqt1uZ/XpXAfE9i+HBC3lA=
+github.com/valyala/fasthttp v1.50.0 h1:H7fweIlBm0rXLs2q0XbalvJ6r0CUPFWK3/bB4N13e9M=
+github.com/valyala/fasthttp v1.50.0/go.mod h1:k2zXd82h/7UZc3VOdJ2WaUqt1uZ/XpXAfE9i+HBC3lA=
 github.com/valyala/tcplisten v1.0.0 h1:rBHj/Xf+E1tRGZyWIWwJDiRY0zc1Js+CV5DqwacVSA8=
 github.com/valyala/tcplisten v1.0.0/go.mod h1:T0xQ8SeCZGxckz9qRXTfG43PvQ/mcWh7FwZEA7Ioqkc=
 github.com/xi2/xz v0.0.0-20171230120015-48954b6210f8 h1:nIPpBwaJSVYIxUFsDv3M8ofmx9yWTog9BfvIu0q41lo=