[WIP] Update upstream documentation for Azure OpenAI responses agent

[Copilot]

• Update skills/dotnet-microsoft-agent-framework/references/official-docs/user-guide/agents/agent-types/azure-openai-responses-agent.md to reflect upstream doc changes:
  • Replace GetOpenAIResponseClient() with GetResponsesClient() (API is no longer experimental)
  • Remove #pragma warning disable/restore OPENAI001 pragmas
  • Remove using OpenAI; import no longer needed
  • Switch example credential from AzureCliCredential to DefaultAzureCredential
  • Add fluent single-call pattern and AsIChatClientWithStoredOutputDisabled() feature
  • Update ms.date in frontmatter to reflect doc revision
• Bump version in SKILL.md for material documentation change
• Validate catalog with python3 scripts/generate_catalog.py --validate-only

Original prompt

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This section details on the original issue you should resolve

<issue_title>Upstream update: learn.microsoft.comagent-framework/user-guide/agents/agent-types/azure-openai-responses-agent documentation documentation changed</issue_title>
<issue_description>Automation detected an upstream change for learn.microsoft.comagent-framework/user-guide/agents/agent-types/azure-openai-responses-agent documentation.

• Watch id: agent-framework-docs-user-guide-agents-agent-types-azure-openai-responses-agent
• Kind: http_document
• Source: https://learn.microsoft.com/agent-framework/user-guide/agents/agent-types/azure-openai-responses-agent
• Current value: "FMzr3I2Dfs3eEGCp3JWRVfv+pCE="
• Previous value: "2/dlvsYnLmIHfsl22qLsnfgMIO8="

Observed detail:

• Azure OpenAI Agents | Microsoft Learn | ETag "FMzr3I2Dfs3eEGCp3JWRVfv+pCE="

Why this matters:

• Review the linked skills when https://learn.microsoft.com/agent-framework/user-guide/agents/agent-types/azure-openai-responses-agent changes.

Likely skills to review:

• dotnet-microsoft-agent-framework

Suggested follow-up:

• Review the upstream release notes or documentation diff
• Update the affected files under skills/
• Update README.md if framework coverage or guidance changed
• Close this issue after the catalog has been refreshed

<agent_instructions>Review all tasks and if needed make jsut one pr an done branch with all updates for skills and docs </agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Upstream update: learn.microsoft.comagent-framework/user-guide/agents/agent-types/azure-openai-responses-agent documentation documentation changed #13

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