add header to the db from sync finality

[kroos47]

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[codecov-commenter]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (63a895d) 37.84% compared to head (4a8d859) 37.84%.
Report is 1 commits behind head on main.

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #322   +/-   ##
=======================================
  Coverage   37.84%   37.84%           
=======================================
  Files          28       28           
  Lines       12371    12370    -1     
=======================================
  Hits         4682     4682           
+ Misses       7689     7688    -1     

Files	Coverage Δ
src/sync_client.rs	47.60% <0.00%> (-0.11%)	⬇️
src/sync_finality.rs	0.00% <0.00%> (ø)

... and 1 file with indirect coverage changes

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