Bump twine from 5.1.0 to 6.1.0 in /client

Bumps [twine](https://github.com/pypa/twine) from 5.1.0 to 6.1.0.
- [Release notes](https://github.com/pypa/twine/releases)
- [Changelog](https://github.com/pypa/twine/blob/main/docs/changelog.rst)
- [Commits](pypa/twine@5.1.0...6.1.0)

---
updated-dependencies:
- dependency-name: twine
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

client/pyproject.toml

@@ -32,7 +32,7 @@ requires-python = ">=3.10"
 certgrinder = "certgrinder.certgrinder:main"
 
 [project.optional-dependencies]
-dev = ["twine == 5.1.0", "pre-commit == 4.0.1", "setuptools-scm == 8.1.0", "build==1.2.2.post1"]
+dev = ["twine == 6.1.0", "pre-commit == 4.0.1", "setuptools-scm == 8.1.0", "build==1.2.2.post1"]
 test = ["pytest == 8.3.4", "pytest-cov==6.0.0", "tox == 4.23.2"]
 docs = ["Sphinx==8.1.3", "sphinx-rtd-theme==3.0.2", "sphinx-argparse==0.4.0"]