Fix flaky appsec tests

[estringana]

Description

Reviewer checklist

• Test coverage seems ok.
• Appropriate labels assigned.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.56%. Comparing base (0926c77) to head (82734ce).
Report is 6 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3013      +/-   ##
============================================
+ Coverage     72.74%   74.56%   +1.82%     
  Complexity     2750     2750              
============================================
  Files           138      111      -27     
  Lines         15060    10900    -4160     
  Branches       1026        0    -1026     
============================================
- Hits          10955     8128    -2827     
+ Misses         3546     2772     -774     
+ Partials        559        0     -559     

Flag	Coverage Δ
appsec-extension	?
tracer-php	74.56% <ø> (ø)

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see 27 files with indirect coverage changes

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