chore: upgrade Rust toolchain to 1.85.0 and language edition to 2024

[hanabi1224]

Summary of changes

Changes introduced in this pull request:

• upgrade Rust toolchain to 1.85.0
• upgrade Rust language edition to 2024
• upgrade Cargo resolver to 3 (implicit)
• fix formatting

Reference issue to close (if applicable)

Closes

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation. All new code
  adheres to the team's
  documentation standards,
• I have added tests that prove my fix is effective or that my feature works
  (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes
  should be reflected in this document.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 9.96%. Comparing base (8e4d15f) to head (2d0b353).

Additional details and impacted files

@@           Coverage Diff            @@
##            main    #147      +/-   ##
========================================
+ Coverage   9.95%   9.96%   +0.01%     
========================================
  Files         25      25              
  Lines       1296    1294       -2     
========================================
  Hits         129     129              
+ Misses      1167    1165       -2     

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