Fix testnet EVM replay

[janezpodhostnik]

Extracted from #6755.

This was needed to fix the re-execution on testsnet

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 41.24%. Comparing base (b3d0864) to head (25a8af5).

Files with missing lines	Patch %	Lines
fvm/evm/offchain/blocks/block_context.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6759      +/-   ##
==========================================
- Coverage   41.24%   41.24%   -0.01%     
==========================================
  Files        2061     2061              
  Lines      182687   182687              
==========================================
- Hits        75358    75348      -10     
- Misses     101019   101031      +12     
+ Partials     6310     6308       -2     

Flag	Coverage Δ
unittests	41.24% <0.00%> (-0.01%)	⬇️

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