feat(gen_ai): add function set_conversation_id and managing functions on the Scope and apply it on the Span on .finish()

[constantinius]

Issues

Closes https://linear.app/getsentry/issue/TET-1736/python-sdk-add-gen-aiconversationid-to-the-integrations-where-it-is

[linear]

TET-1736 Python SDK: Add `gen_ai.conversation.id` to the integrations where it is possible

[github-actions]

Semver Impact of This PR

🟡 Minor (new features)

📋 Changelog Preview

This is how your changes will appear in the changelog.
Entries from this PR are highlighted with a left border (blockquote style).

---

New Features ✨

• feat(anthropic): Set system instruction attribute by alexander-alderman-webb in #5353

• feat(gen_ai): add function set_conversation_id and managing functions on the Scope and apply it on the Span on .finish() by constantinius in #5362

• feat(google-genai): Set system instruction attribute by alexander-alderman-webb in #5354
• feat(langchain): Set system instruction attribute by alexander-alderman-webb in #5357
• feat(openai-agents): Set system instruction attribute by alexander-alderman-webb in #5355
• feat(pydantic-ai): Set system instruction attribute by alexander-alderman-webb in #5356

Internal Changes 🔧

• ci(release): Fix changelog-preview permissions by BYK in #5368
• ci: Fix path in AI integration tests by alexander-alderman-webb in #5347

---

_{🤖 This preview updates automatically when you update the PR.}

[sentrivana]

Nice! LGTM, see one comment

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{Bugbot Autofix is OFF. To automatically fix reported issues with Cloud Agents, enable Autofix in the Cursor dashboard.}