Update setuptools requirement from >=83.0.0 to >=84.0.0 in /gitmud (#127)

Updates the requirements on [setuptools](https://github.com/pypa/setuptools) to permit the latest version.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](pypa/setuptools@v83.0.0...v84.0.0)

---
updated-dependencies:
- dependency-name: setuptools
  dependency-version: 84.0.0
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

gitmud/requirements.txt

@@ -6,6 +6,6 @@ itsdangerous==2.2.0
 MarkupSafe>=3.0.3
 requests>=2.34.2
 scapy>=2.7.0
-setuptools>=83.0.0
+setuptools>=84.0.0
 urllib3>=2.7.0
 Werkzeug>=3.1.8