Bump setuptools in /build/pip in the build-python group

Bumps the build-python group in /build/pip with 1 update: [setuptools](https://github.com/pypa/setuptools).


Updates `setuptools` from 75.5.0 to 75.6.0
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](pypa/setuptools@v75.5.0...v75.6.0)

---
updated-dependencies:
- dependency-name: setuptools
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: build-python
...

Signed-off-by: dependabot[bot] <[email protected]>

build/pip/requirements.txt

@@ -16,7 +16,7 @@ requests==2.32.3
 requests-toolbelt==1.0.0
 rfc3986==2.0.0
 rich==13.9.4
-setuptools==75.5.0
+setuptools==75.6.0
 six==1.16.0
 twine==5.1.1
 urllib3==2.2.3