fix metrics for image file cache

[twonirwana]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 69.23077% with 4 lines in your changes missing coverage. Please review.

Project coverage is 70.63%. Comparing base (f3bacdc) to head (ae3c049).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...nno/discord/bot/dice/image/ImageResultCreator.java	69.23%	4 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #654      +/-   ##
============================================
+ Coverage     70.61%   70.63%   +0.02%     
- Complexity     1234     1236       +2     
============================================
  Files           109      109              
  Lines          5826     5830       +4     
  Branches        593      593              
============================================
+ Hits           4114     4118       +4     
  Misses         1274     1274              
  Partials        438      438              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.