Build: Fix Rust 1.75 beta lints; flake update

[luizirber]

• Fix Rust 1.75 beta lint error
• Update flake dependencies

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (61ac8f7) 86.27% compared to head (619c205) 86.27%.

Files	Patch %	Lines
src/core/src/ffi/signature.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           latest    #2841   +/-   ##
=======================================
  Coverage   86.27%   86.27%           
=======================================
  Files         130      130           
  Lines       14750    14750           
  Branches     2623     2623           
=======================================
  Hits        12725    12725           
  Misses       1724     1724           
  Partials      301      301           

Flag	Coverage Δ
hypothesis-py	25.81% <ø> (ø)
python	92.85% <ø> (ø)
rust	50.92% <0.00%> (ø)

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