Bump snow from 0.9.4 to 0.9.6

[dependabot]

Bumps snow from 0.9.4 to 0.9.6.

Release notes

Sourced from snow's releases.

v0.9.6

• Validate invalid PSK positions when building a Noise protocol.
• Raise errors in various typos/mistakes in Noise patterns when parsing.
• Deprecate the sodiumoxide backend, as that crate is no longer maintained. We may eventually migrate it to a maintaned version of the crate, but for now it's best to warn users.
• Set a hard limit in read_message() in transport mode to 65535 to be fully compliant with the Noise specification.

Full Changelog: mcginty/snow@v0.9.5...v0.9.6

v0.9.5

This is a security release that fixes a logic flaw in decryption in TransportState (i.e. the stateful one), where the nonce could increase even when decryption failed, which can cause a desync between the sender and receiver, opening this up as a denial of service vector if the attacker has the ability to inject packets in the channel Noise is talking over.

More details can be found in the advisory: GHSA-7g9j-g5jg-3vv3

All users are encouraged to update.

Commits

• a4be73f meta: v0.9.6 release
• 9e53dcf TransportState: limit read_message size to 65535
• faf0560 Deprecate sodiumoxide resolver
• 308a24d Add warnings about multiple calls to same method in Builder
• f280991 Error when extraneous parameters are included in string to parse
• dbdcc48 Error on duplicate modifiers in parameter string
• 8b1a819 Validate PSK index in pattern to avoid panic
• 74e30cf meta: v0.9.5 release
• 12e8ae5 Stateful nonce desync fix
• 02c26b7 Remove clap from simple example
• See full diff in compare view

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[DocteurPing]

This PR aims to fix a security issue by updating a dependency. This is the release note of the dependency. No feature will be altered by this update.