fix: fix regex for multi-digit counts

[bobcallaway]

Signed-off-by: Bob Callaway bcallaway@google.com

[codecov-commenter]

Codecov Report

Merging #1321 (591927d) into main (b446717) will increase coverage by 0.03%.
The diff coverage is n/a.

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@@            Coverage Diff             @@
##             main    #1321      +/-   ##
==========================================
+ Coverage   63.29%   63.33%   +0.03%     
==========================================
  Files          82       82              
  Lines        7869     7869              
==========================================
+ Hits         4981     4984       +3     
+ Misses       2259     2257       -2     
+ Partials      629      628       -1     

Flag	Coverage Δ
e2etests	46.85% <ø> (-0.03%)	⬇️
unittests	42.86% <ø> (+0.04%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/types/rekord/v0.0.1/entry.go	66.97% <0.00%> (-0.63%)	⬇️
pkg/types/tuf/v0.0.1/entry.go	49.21% <0.00%> (+0.78%)	⬆️
pkg/types/alpine/v0.0.1/entry.go	72.90% <0.00%> (+1.19%)	⬆️

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