Replace psr0 to psr4

[matyhtf]

No description provided.

[codecov]

Codecov Report

Merging #4500 (5a36661) into master (b85e639) will increase coverage by 0.02%.
The diff coverage is n/a.

❗ Current head 5a36661 differs from pull request most recent head 6004f8f. Consider uploading reports for the commit 6004f8f to get more accurate results

@@            Coverage Diff             @@
##           master    #4500      +/-   ##
==========================================
+ Coverage   53.11%   53.14%   +0.02%     
==========================================
  Files          73       73              
  Lines       14968    14968              
==========================================
+ Hits         7950     7954       +4     
+ Misses       7018     7014       -4     

Impacted Files	Coverage Δ
src/os/async_thread.cc	72.53% <0.00%> (+0.42%)	⬆️
src/protocol/base.cc	63.97% <0.00%> (+1.86%)	⬆️

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