chore(iast): fastapi path parameter support

[avara1986]

Path parameter sources

Previous sources tasks:

• chore(iast): fastapi cookies and headers support #10421
• chore(iast): fastapi query params support #10331

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, 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: avara1986/APPSEC-54622-iast_path_parameter
Commit report: 7829939
Test service: dd-trace-py

✅ 0 Failed, 122390 Passed, 15214 Skipped, 3h 17m 7.55s Total duration (1m 10.98s time saved)

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-08-30 14:17:45

Comparing candidate commit 7829939 in PR branch avara1986/APPSEC-54622-iast_path_parameter with baseline commit 5b394f1 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 353 metrics, 47 unstable metrics.

[github-actions]

CODEOWNERS have been resolved as:

ddtrace/appsec/_iast/_patch.py                                          @DataDog/asm-python
ddtrace/contrib/internal/starlette/patch.py                             @DataDog/apm-core-python @DataDog/apm-idm-python
tests/contrib/fastapi/test_fastapi_appsec_iast.py                       @DataDog/asm-python