chore(asm): add SSRF support for urllib.request

[juanjux]

Description

Add SSRF taint sink support for the stdlib urllib.request module. Also adds a release note that covers this feature and all the previous ones expanding SSRF support (so there is only one release note instead of 4).

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: juanjux/stdlib-urllib-ssrf
Commit report: 5aa62f0
Test service: dd-trace-py

✅ 0 Failed, 115738 Passed, 59735 Skipped, 2h 51m 54.13s Total duration (7h 28m 26.73s time saved)

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-05-13 16:01:50

Comparing candidate commit 2edc164 in PR branch juanjux/stdlib-urllib-ssrf with baseline commit 228ac3b in branch main.

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

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 55 lines in your changes are missing coverage. Please review.

Project coverage is 6.79%. Comparing base (228ac3b) to head (2edc164).

Files	Patch %	Lines
tests/appsec/iast/taint_sinks/test_ssrf.py	0.00%	30 Missing ⚠️
ddtrace/contrib/urllib/patch.py	0.00%	21 Missing ⚠️
ddtrace/contrib/urllib/__init__.py	0.00%	4 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #9224       +/-   ##
===========================================
- Coverage   78.60%    6.79%   -71.81%     
===========================================
  Files        1279     1251       -28     
  Lines      120589   118864     -1725     
===========================================
- Hits        94784     8079    -86705     
- Misses      25805   110785    +84980     

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