Bump pynacl from 1.5.0 to 1.6.2

Bumps [pynacl](https://github.com/pyca/pynacl) from 1.5.0 to 1.6.2.
- [Changelog](https://github.com/pyca/pynacl/blob/main/CHANGELOG.rst)
- [Commits](pyca/pynacl@1.5.0...1.6.2)

---
updated-dependencies:
- dependency-name: pynacl
  dependency-version: 1.6.2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -4,7 +4,7 @@ version = "2.2.0"
 description = "Implementation of the Shapeshifter (UFTP) protocol"
 dependencies = [
     "xsdata[lxml]>=25.0,<27.0",
-    "pynacl==1.5.0",
+    "pynacl==1.6.2",
     "dnspython==2.7.0",
     "fastapi>=0.110,<0.128",
     "fastapi-xml>=1.1.1,<2.0.0",