Update Groundedness and Relevance Evaluators Prompts

[m7md7sien]

Description

Update Groundedness and Relevance Evaluators prompts:

• Groundedness Update without_query guidelines
• Relevance Evaluator Prompt Multi-turn Conversation Handling

If an SDK is being regenerated based on a new API spec, a link to the pull request containing these API spec changes should be included above.

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• The pull request does not introduce [breaking changes]
• CHANGELOG is updated for new features, bug fixes or other significant changes.
• I have read the contribution guidelines.

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Testing Guidelines

• Pull request includes test coverage for the included changes.

[Copilot]

Pull Request Overview

Updates evaluator prompt templates to improve groundedness guidance and add multi-turn conversation handling for relevance scoring. Key changes adjust relevance prompt to use conversation history semantics, revise groundedness rating definitions, and update asset tagging plus a test modification.

• Relevance prompt now references CONVERSATION_HISTORY with multi-turn example
• Groundedness (without query) prompt definitions and rubric wording revised
• Test parameter list altered (RelevanceEvaluator removed) and asset tag updated

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
sdk/evaluation/azure-ai-evaluation/tests/e2etests/test_builtin_evaluators.py	Removes RelevanceEvaluator from a parametrized test case.
sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/_evaluators/_relevance/relevance.prompty	Introduces multi-turn conversation handling and renames semantic concept from QUERY to CONVERSATION_HISTORY while retaining the input variable name.
sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/_evaluators/_groundedness/groundedness_without_query.prompty	Refactors groundedness rubric definitions and examples.
sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/_evaluators/_groundedness/_groundedness.py	Adjusts query presence check to treat None values like missing keys.
sdk/evaluation/azure-ai-evaluation/assets.json	Updates asset tag identifier.

Comments suppressed due to low confidence (1)

sdk/evaluation/azure-ai-evaluation/tests/e2etests/test_builtin_evaluators.py:1324

• Removing RelevanceEvaluator from this parametrized test reduces coverage for protected material JSON evaluation relative to other evaluators. If still supported, keep it in the list or add a dedicated test validating its updated multi-turn prompt behavior.

            RelevanceEvaluator,