Support Rust 1.77

[dannywillems]

Previous versions will be dropped step by step. Upgrading step by step to avoid big diffs.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 76.31%. Comparing base (0390c18) to head (611255f).
Report is 26 commits behind head on master.

Files with missing lines	Patch %	Lines
kimchi/src/precomputed_srs.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2935      +/-   ##
==========================================
- Coverage   76.31%   76.31%   -0.01%     
==========================================
  Files         255      255              
  Lines       60837    60839       +2     
==========================================
+ Hits        46426    46427       +1     
- Misses      14411    14412       +1     

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