Change endpoint fingerprint query parameter to optional

[Anilm3]

This PR changes the endpoint fingerprint to allow for a missing query parameter; this can happen when the request includes no query parameters.

Related Jira: APPSEC-56486

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.13%. Comparing base (9d853b9) to head (2e37bd8).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #365      +/-   ##
==========================================
- Coverage   85.13%   85.13%   -0.01%     
==========================================
  Files         157      157              
  Lines        7994     7993       -1     
  Branches     3551     3551              
==========================================
- Hits         6806     6805       -1     
  Misses        459      459              
  Partials      729      729              

Flag	Coverage Δ
waf_test	85.13% <ø> (-0.01%)	⬇️

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[pr-commenter]

Benchmarks

Benchmark execution time: 2025-01-22 20:51:41

Comparing candidate commit 2e37bd8 in PR branch anilm3/endpoint-fingerprint-query-optional with baseline commit 9d853b9 in branch master.

Found 0 performance improvements and 1 performance regressions! Performance is the same for 0 metrics, 0 unstable metrics.

scenario:global-benchmark.random

• 🟥 execution_time [+9.268ms; +9.299ms] or [+3.206%; +3.216%]