Update dependency PyNaCl to v1.6.2

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This PR contains the following updates:

Package	Change	Age	Confidence
PyNaCl	==1.4.0 → ==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

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• 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.

v1.5.0

Compare Source

• BACKWARDS INCOMPATIBLE: Removed support for Python 2.7 and Python 3.5.
• BACKWARDS INCOMPATIBLE: We no longer distribute manylinux1
  wheels.
• Added manylinux2014, manylinux_2_24, musllinux, and macOS
  universal2 wheels (the latter supports macOS arm64).
• Update libsodium to 1.0.18-stable (July 25, 2021 release).
• Add inline type hints.

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⚠️ Artifact update problem

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The artifact failure details are included below:

File name: Pipfile.lock

Command failed: install-tool pipenv 2026.0.3