[Http.Resilience] The DisableFor method should try to retrieve the request object from the resilience context

[iliar-turdushev]

This PR introduces an additional attempt to retrieve the request message from the resilience context, complementing the existing retrieval from the response. This enhancement addresses a bug where the resilience pipeline failed before a response was received, resulting in unintended retries for HTTP methods that should not have been retried.

Fixes #6548.

Microsoft Reviewers: Open in CodeFlow

[Copilot]

Pull Request Overview

This PR fixes a bug in the HTTP resilience pipeline where retry logic failed to properly disable retries for certain HTTP methods when the resilience pipeline failed before receiving a response. The fix adds fallback logic to retrieve the request message from the resilience context when it's not available in the response.

• Extracts request message retrieval logic into a helper method that checks both response and context
• Updates test cases to verify the new fallback behavior when response is null
• Adds proper context setup in test methods to support the enhanced retrieval logic

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
HttpRetryStrategyOptionsExtensions.cs	Adds helper method to retrieve request message from response or context as fallback
HttpRetryStrategyOptionsExtensionsTests.cs	Updates tests to verify context-based request retrieval and adds missing using statement