chore(iast): normalize iast logs

[avara1986]

Related to: #13239 / APPSEC-56947

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

[github-actions]

CODEOWNERS have been resolved as:

ddtrace/appsec/_iast/_taint_tracking/aspects.py                         @DataDog/asm-python

[github-actions]

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 235 ± 3 ms.

The average import time from base is: 238 ± 2 ms.

The import time difference between this PR and base is: -2.9 ± 0.1 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 2.016 ms (0.86%)

ddtrace.bootstrap.sitecustomize 1.343 ms (0.57%)

ddtrace.bootstrap.preload 1.343 ms (0.57%)

ddtrace.internal.products 1.343 ms (0.57%)

ddtrace.internal.remoteconfig.client 0.640 ms (0.27%)

ddtrace 0.673 ms (0.29%)

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-04-21 14:50:08

Comparing candidate commit 2db0dbf in PR branch avara1986/fix_iast_log_format with baseline commit fc7bb21 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 500 metrics, 8 unstable metrics.