hack: experimental chunk execution

[pugachAG]

This PR executes apply_chunk with ApplyChunkReason::Experiment along with the normal execution with ApplyChunkReason::UpdateTrackedShard. This way we can modify runtime behaviour based on apply_state.apply_reason and compare the metrics we are interested in.

[codecov]

Codecov Report

Attention: Patch coverage is 96.42857% with 1 line in your changes missing coverage. Please review.

Project coverage is 71.53%. Comparing base (ee5f317) to head (117ee0e).
Report is 5 commits behind head on master.

Files with missing lines	Patch %	Lines
tools/replay-archive/src/cli.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #12013      +/-   ##
==========================================
+ Coverage   71.51%   71.53%   +0.02%     
==========================================
  Files         812      814       +2     
  Lines      164491   164652     +161     
  Branches   164491   164652     +161     
==========================================
+ Hits       117634   117790     +156     
+ Misses      41701    41699       -2     
- Partials     5156     5163       +7     

Flag	Coverage Δ
backward-compatibility	0.23% <0.00%> (-0.01%)	⬇️
db-migration	0.23% <0.00%> (-0.01%)	⬇️
genesis-check	1.34% <0.00%> (-0.01%)	⬇️
integration-tests	38.48% <96.42%> (+0.05%)	⬆️
linux	71.22% <96.42%> (-0.05%)	⬇️
linux-nightly	71.09% <96.42%> (-0.01%)	⬇️
macos	54.18% <75.00%> (+0.59%)	⬆️
pytests	1.60% <0.00%> (-0.01%)	⬇️
sanity-checks	1.40% <0.00%> (-0.01%)	⬇️
unittests	65.48% <96.42%> (+0.02%)	⬆️
upgradability	0.27% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.