Truncate test result files

[lucacome]

Proposed changes

Problem: The NFR tests need to update the edge results, but they are appending the new results to the existing ones

Solution: Truncate existing results files so that the content is replaced and we see the diff in the PR

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

Release notes

If this PR introduces a change that affects users and needs to be mentioned in the release notes,
please add a brief note that summarizes the change.

NONE

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.76%. Comparing base (13c0163) to head (5285a0c).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2255      +/-   ##
==========================================
+ Coverage   87.73%   87.76%   +0.02%     
==========================================
  Files          96       96              
  Lines        6793     6793              
  Branches       50       50              
==========================================
+ Hits         5960     5962       +2     
+ Misses        775      774       -1     
+ Partials       58       57       -1     

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