typo-Update chain.rs

[romashka-btc]

Fix: Corrected typo in source file

Changes

• chain/chain/src/chain.rs:3918: "preprocesing" corrected to "preprocessing".

Purpose

• Improved code accuracy and ensured professionalism by fixing the typo.

[wacban]

LGTM, thank you

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.50%. Comparing base (33afc1d) to head (11453e6).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #12665   +/-   ##
=======================================
  Coverage   70.50%   70.50%           
=======================================
  Files         845      845           
  Lines      172257   172257           
  Branches   172257   172257           
=======================================
+ Hits       121442   121455   +13     
+ Misses      45717    45706   -11     
+ Partials     5098     5096    -2     

Flag	Coverage Δ
backward-compatibility	0.16% <ø> (ø)
db-migration	0.16% <ø> (ø)
genesis-check	1.36% <ø> (ø)
linux	69.35% <ø> (-0.01%)	⬇️
linux-nightly	70.10% <ø> (+<0.01%)	⬆️
pytests	1.66% <ø> (ø)
sanity-checks	1.47% <ø> (ø)
unittests	70.33% <ø> (+<0.01%)	⬆️
upgradability	0.20% <ø> (ø)

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.