refactor: replace EpochInfoProvider::account_id_to_shard_id with shar…

[ssavenko-near]

issue 12542

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 1 line in your changes missing coverage. Please review.

Project coverage is 70.72%. Comparing base (3d8336a) to head (a9a0bda).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
runtime/runtime/src/congestion_control.rs	80.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #12754      +/-   ##
==========================================
+ Coverage   69.08%   70.72%   +1.64%     
==========================================
  Files         849      849              
  Lines      173954   174647     +693     
  Branches   173954   174647     +693     
==========================================
+ Hits       120174   123517    +3343     
+ Misses      48703    45959    -2744     
- Partials     5077     5171      +94     

Flag	Coverage Δ
backward-compatibility	0.16% <0.00%> (?)
db-migration	0.16% <0.00%> (?)
genesis-check	1.35% <0.00%> (?)
linux	69.18% <83.33%> (+0.09%)	⬆️
linux-nightly	70.32% <83.33%> (?)
pytests	1.65% <0.00%> (?)
sanity-checks	1.46% <0.00%> (?)
unittests	70.55% <83.33%> (+1.47%)	⬆️
upgradability	0.20% <0.00%> (?)

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[wacban]

LGTM, thanks!

[wacban]

This unwrap bothers me a little but it's not related to your PR. Please ignore unless you have any good ideas.