chore(iast): remove abseil cpp dependency

[gnufede]

Checklist

• Change(s) are motivated and described in the PR description
• Testing strategy is described if automated tests are not included in the PR
• Risks are described (performance impact, potential for breakage, maintainability)
• Change is maintainable (easy to change, telemetry, documentation)
• Library release note guidelines are followed or label changelog/no-changelog is set
• Documentation is included (in-code, generated user docs, public corp docs)
• Backport labels are set (if applicable)
• If this PR changes the public interface, I've notified @DataDog/apm-tees.

Reviewer Checklist

• Title is accurate
• All changes are related to the pull request's stated goal
• Description motivates each change
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Change is maintainable (easy to change, telemetry, documentation)
• Release note makes sense to a user of the library
• Author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[datadog-dd-trace-py-rkomorn]

Datadog Report

Branch report: gnufede/remove-abseil-cpp-dependency
Commit report: 703adc9
Test service: dd-trace-py

✅ 0 Failed, 109278 Passed, 3716 Skipped, 6m 25.21s Total duration (43m 18.9s time saved)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 6.78%. Comparing base (7847145) to head (703adc9).
Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #9221       +/-   ##
===========================================
- Coverage   78.58%    6.78%   -71.81%     
===========================================
  Files        1277     1247       -30     
  Lines      120395   118654     -1741     
===========================================
- Hits        94610     8047    -86563     
- Misses      25785   110607    +84822     

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[pr-commenter]

Benchmarks

Benchmark execution time: 2024-05-13 09:07:52

Comparing candidate commit 703adc9 in PR branch gnufede/remove-abseil-cpp-dependency with baseline commit d0f56ab in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 209 metrics, 9 unstable metrics.