fix(tm2): Improve hash comparison messages in consensus error handling

[sunspirit99]

Relates to #2773

Description:
This PR enhances the error messaging in the validateBlock function by formatting the hash values as a hexadecimal string instead of a byte array. This change improves readability during consensus failures

Contributors' checklist...

• Added new tests, or not needed, or not feasible
• Provided an example (e.g. screenshot) to aid review or the PR is self-explanatory
• Updated the official documentation or not needed
• No breaking changes were made, or a BREAKING CHANGE: xxx message was included in the description
• Added references to related issues and PRs
• Provided any useful hints for running manual tests
• Added new benchmarks to generated graphs, if any. More info here.

[thehowl]

Please add golden tests showing the error messages

[sunspirit99]

Please add golden tests showing the error messages

@thehowl thanks, i just improved the test cases in a3fee13

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.92%. Comparing base (df0d6b8) to head (bc31c05).
Report is 7 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2859      +/-   ##
==========================================
+ Coverage   60.90%   60.92%   +0.01%     
==========================================
  Files         564      564              
  Lines       75269    75278       +9     
==========================================
+ Hits        45843    45863      +20     
+ Misses      26055    26044      -11     
  Partials     3371     3371              

Flag	Coverage Δ
contribs/gnodev	61.46% <ø> (ø)
contribs/gnofaucet	14.46% <ø> (ø)
gno.land	67.17% <ø> (ø)
gnovm	65.77% <ø> (+<0.01%)	⬆️
misc/genstd	80.54% <ø> (ø)
misc/logos	19.88% <ø> (ø)
tm2	62.06% <100.00%> (+<0.01%)	⬆️

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