build(deps): bump setuptools from 80.3.1 to 80.4.0

Bumps [setuptools](https://github.com/pypa/setuptools) from 80.3.1 to 80.4.0.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](https://github.com/pypa/setuptools/compare/v80.3.1...v80.4.0)

---
updated-dependencies:
- dependency-name: setuptools
  dependency-version: 80.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -6,7 +6,7 @@
 # Dependabot will keep these versions up to date.
 
 pip == 25.1.1          # pip is the package installer for Python
-setuptools == 80.3.1   # for building Python packages
+setuptools == 80.4.0   # for building Python packages
 pyelftools == 0.32     # for building U-Boot
 unidiff == 0.7.5       # for parsing unified diff
 GitPython == 3.1.44    # for manipulating git repos