feat(appsec): add fingerprint

[Leiyks]

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 72.46%. Comparing base (3abddef) to head (b51ecd6).
Report is 9 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #2955   +/-   ##
=========================================
  Coverage     72.46%   72.46%           
  Complexity     2527     2527           
=========================================
  Files           135      135           
  Lines         14402    14402           
  Branches        991      991           
=========================================
  Hits          10436    10436           
  Misses         3422     3422           
  Partials        544      544           

Flag	Coverage Δ
appsec-extension	68.57% <ø> (ø)
tracer-php	73.97% <ø> (ø)

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