chore(deps): update dependency gunicorn to v23 (#37)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [gunicorn](https://github.com/benoitc/gunicorn) ([changelog](https://docs.gunicorn.org/en/stable/news.html)) | `==22.0.0` -> `==23.0.0` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/gunicorn/23.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/gunicorn/23.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/gunicorn/22.0.0/23.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/gunicorn/22.0.0/23.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>benoitc/gunicorn (gunicorn)</summary>

### [`v23.0.0`](https://github.com/benoitc/gunicorn/releases/tag/23.0.0)

[Compare Source](https://github.com/benoitc/gunicorn/compare/22.0.0...23.0.0)

Gunicorn 23.0.0 has been released. This version improve HTTP 1.1. support and  which improve safety

You're invited to upgrade asap your own installation.

# 23.0.0 - 2024-08-10

-   minor docs fixes (:pr:`3217`, :pr:`3089`, :pr:`3167`)
-   worker_class parameter accepts a class (:pr:`3079`)
-   fix deadlock if request terminated during chunked parsing (:pr:`2688`)
-   permit receiving Transfer-Encodings: compress, deflate, gzip (:pr:`3261`)
-   permit Transfer-Encoding headers specifying multiple encodings. note: no parameters, still (:pr:`3261`)
-   sdist generation now explicitly excludes sphinx build folder (:pr:`3257`)
-   decode bytes-typed status (as can be passed by gevent) as utf-8 instead of raising `TypeError` (:pr:`2336`)
-   raise correct Exception when encounting invalid chunked requests (:pr:`3258`)
-   the SCRIPT_NAME and PATH_INFO headers, when received from allowed forwarders, are no longer restricted for containing an underscore (:pr:`3192`)
-   include IPv6 loopback address `[::1]` in default for :ref:`forwarded-allow-ips` and :ref:`proxy-allow-ips` (:pr:`3192`)

\*\* NOTE \*\*

-   The SCRIPT_NAME change mitigates a regression that appeared first in the 22.0.0 release
-   Review your :ref:`forwarded-allow-ips` setting if you are still not seeing the SCRIPT_NAME transmitted
-   Review your :ref:`forwarder-headers` setting if you are missing headers after upgrading from a version prior to 22.0.0

\*\* Breaking changes \*\*

-   refuse requests where the uri field is empty (:pr:`3255`)
-   refuse requests with invalid CR/LR/NUL in heade field values (:pr:`3253`)
-   remove temporary `--tolerate-dangerous-framing` switch from 22.0 (:pr:`3260`)
-   If any of the breaking changes affect you, be aware that now refused requests can post a security problem, especially so in setups involving request pipe-lining and/or proxies.

Fix CVE-2024-1135

</details>

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Reviewed-on: #37
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requirements.txt

@@ -1,5 +1,5 @@
 Flask==3.0.3
 Flask-Cors==4.0.1
-gunicorn==22.0.0
+gunicorn==23.0.0
 requests==2.32.3
 flasgger==0.9.7.1