fix: only update cache in storage once per pending request

[yassilah]

🔗 Linked issue

Resolves #859

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codecov]

Codecov Report

Merging #861 (f25b37f) into main (63e250d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #861   +/-   ##
=======================================
  Coverage   67.13%   67.13%           
=======================================
  Files          59       59           
  Lines        5785     5785           
  Branches      614      614           
=======================================
  Hits         3884     3884           
  Misses       1893     1893           
  Partials        8        8           

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[pi0]

Thanks!