Allows relative paths for diagnostic scripts.

[rbeucher]

Description

Closes #2328

Link to documentation:

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.77%. Comparing base (7e16883) to head (69c2c32).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2329   +/-   ##
=======================================
  Coverage   94.76%   94.77%           
=======================================
  Files         251      251           
  Lines       14280    14282    +2     
=======================================
+ Hits        13533    13536    +3     
+ Misses        747      746    -1     

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[valeriupredoi]

@rbeucher would you be able to run pre-commit on this one please, mate? I'll have a look after - my sincere apologies, no idea why I made this PR wait for so long

[rbeucher]

@valeriupredoi , this one should be good to go