Update Rust crate rand to 0.8.5

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
rand (source)	dev-dependencies	patch	0.8.4 -> 0.8.5

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Release Notes

rust-random/rand (rand)

v0.8.5

Compare Source

Fixes

• Fix build on non-32/64-bit architectures (#​1144)
• Fix "min_const_gen" feature for no_std (#​1173)
• Check libc::pthread_atfork return value with panic on error (#​1178)
• More robust reseeding in case ReseedingRng is used from a fork handler (#​1178)
• Fix nightly: remove unused slice_partition_at_index feature (#​1215)
• Fix nightly + simd_support: update packed_simd (#​1216)

Rngs

• StdRng: Switch from HC128 to ChaCha12 on emscripten (#​1142).
  We now use ChaCha12 on all platforms.

Documentation

• Added docs about rand's use of const generics (#​1150)
• Better random chars example (#​1157)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (56dee3d) 82.84% compared to head (c4cae36) 82.84%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #21      +/-   ##
==========================================
- Coverage   82.84%   82.84%   -0.01%     
==========================================
  Files         106      106              
  Lines       11137    11137              
==========================================
- Hits         9227     9226       -1     
- Misses       1910     1911       +1     

see 2 files with indirect coverage changes

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