Fix: still use an in-memory cache even when loading/saving disabled

[emmercm]

No description provided.

[github-actions]

🧪 Branch testing instructions

This pull request has been merged, its base branch can be tested locally with the following command:

npm exec --yes -- "github:emmercm/igir#emmercm/3.0.0-feature" [commands..] [options]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.62%. Comparing base (3188811) to head (684299b).
Report is 1 commits behind head on emmercm/3.0.0-feature.

Additional details and impacted files

@@                    Coverage Diff                    @@
##           emmercm/3.0.0-feature    #1280      +/-   ##
=========================================================
- Coverage                  92.63%   92.62%   -0.02%     
=========================================================
  Files                        117      117              
  Lines                       7355     7345      -10     
  Branches                    1656     1773     +117     
=========================================================
- Hits                        6813     6803      -10     
  Misses                       541      541              
  Partials                       1        1              

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[github-actions]

🔒 Inactive pull request lock

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

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