Update dependency PyNaCl to v1.6.2

[uniproject-renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
PyNaCl	==1.5.0 → ==1.6.2
pynacl	==1.5.0 → ==1.6.2

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Release Notes

pyca/pynacl (PyNaCl)

v1.6.2

Compare Source

• Updated libsodium to 1.0.20-stable (2025-12-31 build) to resolve
  CVE-2025-69277.

v1.6.1

Compare Source

• The MAKE environment variable can now be used to specify the make
  binary that should be used in the build process.

v1.6.0

Compare Source

• BACKWARDS INCOMPATIBLE: Removed support for Python 3.6 and 3.7.
• Added support for the low level AEAD AES bindings.
• Added support for crypto_core_ed25519_from_uniform.
• Update libsodium to 1.0.20-stable (2025-08-27 build).
• Added support for free-threaded Python 3.14.
• Added support for Windows on ARM wheels.

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Configuration

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• If you want to rebase/retry this PR, check this box

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This PR has been generated by Renovate Bot.

[uniproject-renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: src/uv.lock

Command failed: uv lock --upgrade-package pynacl
Using CPython 3.14.2 interpreter at: /opt/containerbase/tools/python/3.14.2/bin/python3.14
  × No solution found when resolving dependencies for split (markers:
  │ python_full_version >= '3.13'):
  ╰─▶ Because pynacl==1.6.2 depends on cffi{platform_python_implementation !=
      'PyPy'}>=2.0.0 and your project depends on cffi==1.17.1, we can conclude
      that pynacl==1.6.2 and your project are incompatible.
      And because your project depends on pynacl==1.6.2, we can conclude that
      your project's requirements are unsatisfiable.