Update Rust crate rand to v0.10.2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
rand (source)	dev-dependencies	patch	0.10.1 → 0.10.2

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Release Notes

rust-random/rand (rand)

v0.10.2

Compare Source

Fixes

• Fix possible memory safety violation due to deserialization of UniformChar from bad source (#​1790)

Changes

• Document required output order of fn partial_shuffle and apply #[must_use] (#​1769)
• Avoid usage of unsafe in contexts where non-local memory corruption could invalidate contract (#​1791)

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