feat(franz-go): add orchestrion aspect for automatic instrumentation

[genesor]

What does this PR do?

Adds orchestrion support for the twmb/franz-go integration:

• Adds orchestrion.yml aspect that hooks into kgo.NewClient() and appends WithTracing() to enable automatic distributed tracing
• Registers the aspect in orchestrion/all
• Adds an orchestrion integration test at internal/orchestrion/_integration/twmb_franz_go/
• Adds the franz-go replace directive to the integration test module

Motivation

Enable automatic instrumentation of franz-go Kafka clients via orchestrion, matching the existing pattern used by other integrations (gRPC, segmentio/kafka-go, etc.).

Reviewer's Checklist

• Changed code has unit tests for its functionality at or near 100% coverage.
• System-Tests covering this feature have been added and enabled with the va.b.c-dev version tag.
• There is a benchmark for any new code, or changes to existing code.
• If this interacts with the agent in a new way, a system test has been added.
• New code is free of linting errors. You can check this by running make lint locally.
• New code doesn't break existing tests. You can check this by running make test locally.
• Add an appropriate team label so this PR gets put in the right place for the release notes.
• All generated files are up to date. You can check this by running make generate locally.
• Non-trivial go.mod changes, e.g. adding new modules, are reviewed by @DataDog/dd-trace-go-guild. Make sure all nested modules are up to date by running make fix-modules locally.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.70%. Comparing base (80e87f8) to head (bc7a982).

Additional details and impacted files

see 2 files with indirect coverage changes

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[datadog-prod-us1-6]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 60.11% (+0.05%)

_{This comment will be updated automatically if new data arrives.
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[kakkoyun]

Where does createTopic actually get called?

[genesor]

I'm pretty sure it's not used anymore. I will double check the integration test before opening the PR. For now we're stuck with the upstream lib PR anyway