chore(deps): update dependency lxml to >=4.5.0,<6.0.0 (main) (#2878)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [lxml](https://lxml.de/) ([source](https://togithub.com/lxml/lxml),
[changelog](https://git.launchpad.net/lxml/plain/CHANGES.txt)) |
`>=4.5.0,<5.1.0` -> `>=4.5.0,<6.0.0` |
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|
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|
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|
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|

---

### Release Notes

<details>
<summary>lxml/lxml (lxml)</summary>

###
[`v5.1.0`](https://togithub.com/lxml/lxml/blob/HEAD/CHANGES.txt#510-2024-01-05)

[Compare
Source](https://togithub.com/lxml/lxml/compare/lxml-5.0.1...lxml-5.1.0)

\==================

## Features added

-   Parsing ASCII strings is slightly faster.

## Bugs fixed

- [GH#349](https://togithub.com/GH/lxml/issues/349): The HTML
`Cleaner()` interpreted an accidentally provided string parameter
for the `host_whitelist` as list of characters and silently failed to
reject any hosts.
    Passing a non-collection is now rejected.

## Other changes

-   Support for Python 2.7 and Python versions < 3.6 was removed.

-   The wheel build was migrated to use `cibuildwheel`.
    Patch by Primož Godec.

</details>

---

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playout/requirements.txt

@@ -3,7 +3,7 @@
 backports.zoneinfo>=0.2.1,<0.3;python_version<'3.9'
 jinja2>=3.0.3,<3.2
 kombu==4.6.11
-lxml>=4.5.0,<5.1.0
+lxml>=4.5.0,<6.0.0
 mutagen>=1.45.1,<1.48
 python-dateutil>=2.8.1,<2.9
 requests>=2.31.0,<2.32

playout/setup.py

@@ -28,7 +28,7 @@ setup(
         "backports.zoneinfo>=0.2.1,<0.3;python_version<'3.9'",
         "jinja2>=3.0.3,<3.2",
         "kombu==4.6.11",
-        "lxml>=4.5.0,<5.1.0",
+        "lxml>=4.5.0,<6.0.0",
         "mutagen>=1.45.1,<1.48",
         "python-dateutil>=2.8.1,<2.9",
         "requests>=2.31.0,<2.32",