Add AI Guard client IP system test

[smola]

Motivation

We want to collect http.client_ip and network.client.ip for HTTP requests that contain, at least, one AI Guard span.

APPSEC-62198

Changes

Add the relevant system test, as missing feature everywhere.

Workflow

1. ⚠️ Create your PR as draft ⚠️
2. Work on you PR until the CI passes
3. Mark it as ready for review
   • Test logic is modified? -> Get a review from RFC owner.
   • Framework is modified, or non obvious usage of it -> get a review from R&P team

🚀 Once your PR is reviewed and the CI green, you can merge it!

🛟 #apm-shared-testing 🛟

Reviewer checklist

• Anything but tests/ or manifests/ is modified ? I have the approval from R&P team
• A docker base image is modified?
  • the relevant build-XXX-image label is present
• A scenario is added, removed or renamed?
  • Get a review from R&P team

[github-actions]

CODEOWNERS have been resolved as:

docs/understand/scenarios/ai_guard.md                                   @DataDog/k9-ai-guard @DataDog/system-tests-core
manifests/cpp_httpd.yml                                                 @DataDog/dd-trace-cpp
manifests/cpp_nginx.yml                                                 @DataDog/dd-trace-cpp
manifests/dotnet.yml                                                    @DataDog/apm-dotnet @DataDog/asm-dotnet
manifests/golang.yml                                                    @DataDog/dd-trace-go-guild
manifests/java.yml                                                      @DataDog/asm-java @DataDog/apm-java
manifests/nodejs.yml                                                    @DataDog/dd-trace-js
manifests/php.yml                                                       @DataDog/apm-php @DataDog/asm-php
manifests/python.yml                                                    @DataDog/apm-python @DataDog/asm-python
manifests/ruby.yml                                                      @DataDog/ruby-guild @DataDog/asm-ruby
tests/ai_guard/test_ai_guard_sdk.py                                     @DataDog/k9-ai-guard @DataDog/system-tests-core
utils/_context/_scenarios/__init__.py                                   @DataDog/system-tests-core

[datadog-datadog-prod-us1]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

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[y9v]

looks good 👍🏼

It will be not so easy to implement for Ruby I'm afraid, but let's see if we can find some easy approach