Algod: update copyright comment to 2023

[id-ms]

Summary

Update the license comment to 2023. Happy new year!

Test Plan

[codecov]

Codecov Report

Merging #4957 (6e1a5bf) into master (4f1ac12) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4957      +/-   ##
==========================================
+ Coverage   53.70%   53.72%   +0.01%     
==========================================
  Files         433      433              
  Lines       54050    54050              
==========================================
+ Hits        29028    29036       +8     
+ Misses      22776    22767       -9     
- Partials     2246     2247       +1     

Impacted Files	Coverage Δ
agreement/abstractions.go	50.00% <ø> (ø)
agreement/actions.go	72.35% <ø> (ø)
agreement/actor.go	46.66% <ø> (ø)
agreement/agreeInstall.go	100.00% <ø> (ø)
agreement/agreementtest/keyManager.go	100.00% <ø> (ø)
agreement/agreementtest/simulate.go	87.83% <ø> (ø)
agreement/asyncVoteVerifier.go	89.83% <ø> (ø)
agreement/autopsy.go	0.00% <ø> (ø)
agreement/bundle.go	84.82% <ø> (ø)
agreement/cadaver.go	58.33% <ø> (ø)
... and 123 more

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