Bump pynacl from 1.5.0 to 1.6.0

Bumps [pynacl](https://github.com/pyca/pynacl) from 1.5.0 to 1.6.0.
- [Changelog](https://github.com/pyca/pynacl/blob/main/CHANGELOG.rst)
- [Commits](pyca/pynacl@1.5.0...1.6.0)

---
updated-dependencies:
- dependency-name: pynacl
  dependency-version: 1.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Pipfile

@@ -30,7 +30,7 @@ pipenv = "==2025.0.4"
 pydantic = "==2.9.2"
 pydoclint = "==0.6.6"
 pylint = "==4.0.2"
-pynacl = "==1.5.0"
+pynacl = "==1.6.0"
 pytest = "==8.4.0"
 pytest-asyncio = "==1.1.1"
 pyyaml = "==6.0.1"