chore(iast): remove IAST deny list elements

[avara1986]

A memory leak was introduced in #10540 when "py" was removed from the deny list. This caused a leak in FastAPI with the pypika package. #10846 patched the issue, and #10947 resolved it. Now, we're re-enabling those packages.

This PR is tested in #10902

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)

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• Reviewer has checked that all the criteria below are met
• Title is accurate
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• 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/_ast/ast_patching.py                               @DataDog/asm-python

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-10-07 20:19:26

Comparing candidate commit 88423d3 in PR branch avara1986/leak_hunt with baseline commit 2af13d9 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 373 metrics, 53 unstable metrics.