test: reenable chunk management tests

[Longarithm]

Hooray.
https://nayduck.nearone.org/#/run/130

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.36%. Comparing base (43c04fb) to head (63aa856).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #11471      +/-   ##
==========================================
+ Coverage   71.34%   71.36%   +0.01%     
==========================================
  Files         787      787              
  Lines      159019   159019              
  Branches   159019   159019              
==========================================
+ Hits       113460   113490      +30     
+ Misses      40653    40624      -29     
+ Partials     4906     4905       -1     

Flag	Coverage Δ
backward-compatibility	0.23% <ø> (ø)
db-migration	0.23% <ø> (ø)
genesis-check	1.37% <ø> (ø)
integration-tests	37.49% <ø> (+0.06%)	⬆️
linux	68.84% <ø> (+0.01%)	⬆️
linux-nightly	70.85% <ø> (-0.02%)	⬇️
macos	50.85% <ø> (-0.02%)	⬇️
pytests	1.58% <ø> (ø)
sanity-checks	1.38% <ø> (ø)
unittests	66.10% <ø> (+<0.01%)	⬆️
upgradability	0.28% <ø> (ø)

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