Fix appsec integration tests

[cataphract]

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 73.97%. Comparing base (fca0ec2) to head (6397d1a).

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #2821   +/-   ##
=========================================
  Coverage     73.97%   73.97%           
  Complexity     2516     2516           
=========================================
  Files           173      173           
  Lines         18679    18679           
  Branches        975      975           
=========================================
  Hits          13818    13818           
  Misses         4324     4324           
  Partials        537      537           

Flag	Coverage Δ
appsec-extension	69.12% <ø> (ø)
tracer-extension	78.19% <ø> (ø)
tracer-php	74.10% <ø> (ø)

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