fix: printf for Record protobuf gen struct

[raynaudoe]

Description

Closes: #11368

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Author Checklist

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please add links to any relevant follow up issues.

I have...

• included the correct type prefix in the PR title
• added ! to the type prefix if API or client breaking change
• targeted the correct branch (see PR Targeting)
• provided a link to the relevant issue or specification
• followed the guidelines for building modules
• [] included the necessary unit and integration tests
• added a changelog entry to CHANGELOG.md
• included comments for documenting Go code
• updated the relevant documentation or specification
• reviewed "Files changed" and left comments if necessary
• confirmed all CI checks have passed

Reviewers Checklist

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your handle next to the items reviewed if you only reviewed selected items.

I have...

• confirmed the correct type prefix in the PR title
• confirmed ! in the type prefix if API or client breaking change
• confirmed all author checklist items have been addressed
• reviewed state machine logic
• reviewed API design and naming
• reviewed documentation is accurate
• reviewed tests and test coverage
• manually tested (if applicable)

[codecov]

Codecov Report

Merging #12978 (a712319) into main (6a4d2a1) will decrease coverage by 0.07%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main   #12978      +/-   ##
==========================================
- Coverage   53.28%   53.21%   -0.08%     
==========================================
  Files         651      646       -5     
  Lines       55393    55238     -155     
==========================================
- Hits        29515    29393     -122     
+ Misses      23524    23499      -25     
+ Partials     2354     2346       -8     

Impacted Files	Coverage Δ
tx/textual/valuerenderer/timestamp.go
tx/textual/valuerenderer/bytes.go
tx/textual/valuerenderer/int.go
tx/textual/valuerenderer/dec.go
tx/textual/valuerenderer/valuerenderer.go
crypto/keys/internal/ecdsa/privkey.go	83.01% <0.00%> (+1.88%)	⬆️