[CQA SDK] Update test and record

[Amichelangelo]

Description

Please add an informative description that covers that changes made by the pull request and link all relevant issues.

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All SDK Contribution checklist:

• 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.

General Guidelines and Best Practices

• Title of the pull request is clear and informative.
• There are a small number of commits, each of which have an informative message. This means that previously merged commits do not appear in the history of the PR. For more information on cleaning up the commits in your PR, see this page.

Testing Guidelines

• Pull request includes test coverage for the included changes.

[Copilot]

Pull request overview

This pull request updates tests and test recordings for the Cognitive Language Question Answering (CQA) SDK, affecting both the runtime (question answering) and authoring packages.

Changes:

• Removed metadata filter test coverage from question answering runtime tests (both sync and async)
• Replaced source-based tests with QnA-based tests in the authoring package
• Updated test recording asset tags to reflect new test recordings

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase.py	Removed test_query_knowledgebase_filter test that validated metadata filtering functionality
sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase_async.py	Removed async version of test_query_knowledgebase_filter test
sdk/cognitivelanguage/azure-ai-language-questionanswering/assets.json	Updated test recording asset tag
sdk/cognitivelanguage/azure-ai-language-questionanswering-authoring/tests/test_update_knowledge_sources.py	Renamed test_add_source to test_add_chitchat and changed from testing URL source addition to QnA pair addition
sdk/cognitivelanguage/azure-ai-language-questionanswering-authoring/tests/test_update_knowledge_sources_async.py	Async version of the same test rename and functionality change
sdk/cognitivelanguage/azure-ai-language-questionanswering-authoring/assets.json	Updated test recording asset tag

[Amichelangelo]

/azp run python - cognitivelanguage

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[sarkar-rajarshi]

/azp run python - cognitivelanguage

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).