renovatebot(deps): update dependency urllib3 to v2.1.0

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [urllib3](https://togithub.com/urllib3/urllib3) ([changelog](https://togithub.com/urllib3/urllib3/blob/main/CHANGES.rst)) | `==2.0.7` -> `==2.1.0` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/urllib3/2.1.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/urllib3/2.1.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/urllib3/2.0.7/2.1.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/urllib3/2.0.7/2.1.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>urllib3/urllib3 (urllib3)</summary>

### [`v2.1.0`](https://togithub.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#210-2023-11-13)

[Compare Source](https://togithub.com/urllib3/urllib3/compare/2.0.7...2.1.0)

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

Read the `v2 migration guide <https://urllib3.readthedocs.io/en/latest/v2-migration-guide.html>`\__ for help upgrading to the latest version of urllib3.

## Removals

-   Removed support for the deprecated urllib3\[secure] extra. (`#&#8203;2680 <https://github.com/urllib3/urllib3/issues/2680>`\__)
-   Removed support for the deprecated SecureTransport TLS implementation. (`#&#8203;2681 <https://github.com/urllib3/urllib3/issues/2681>`\__)
-   Removed support for the end-of-life Python 3.7. (`#&#8203;3143 <https://github.com/urllib3/urllib3/issues/3143>`\__)

## Bugfixes

-   Allowed loading CA certificates from memory for proxies. (`#&#8203;3065 <https://github.com/urllib3/urllib3/issues/3065>`\__)
-   Fixed decoding Gzip-encoded responses which specified `x-gzip` content-encoding. (`#&#8203;3174 <https://github.com/urllib3/urllib3/issues/3174>`\__)

</details>

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etc/loadtests/locust/requirements.txt

@@ -15,4 +15,4 @@ six==1.16.0
 setuptools==68.2.2
 requests==2.31.0
 Werkzeug==3.0.1
-urllib3==2.0.7
+urllib3==2.1.0