poetry: bump setuptools from 75.4.0 to 78.1.1 in the pip group

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


Updates `setuptools` from 75.4.0 to 78.1.1
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](pypa/setuptools@v75.4.0...v78.1.1)

---
updated-dependencies:
- dependency-name: setuptools
  dependency-version: 78.1.1
  dependency-type: indirect
  dependency-group: pip
...

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

Author: dependabot[bot]