Update setuptools requirement from >=84.2.0 to >=84.2.1

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@v84.2.0...v84.2.1)

---
updated-dependencies:
- dependency-name: setuptools
  dependency-version: 84.2.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -1,7 +1,7 @@
 certifi>=2024.7.4 # MPL -- oldest release without a known advisory (CVE-2024-39689)
 python-dateutil>=2.8.2  # BSD
 pydantic>=2.14.1  # MIT
-setuptools>=84.2.0  # PSF/ZPL
+setuptools>=84.2.1  # PSF/ZPL
 PyYAML>=6.0.3  # MIT
 websocket-client>=0.32.0,!=0.40.0,!=0.41.*,!=0.42.* # LGPLv2+
 requests # Apache-2.0