Ensuring deleted cookies are recognized by the browser by ensuring the MaxAge within CookieOptions is set to null.

[MattyLeslie]

Reset MaxAge to Null on Cookie Deletion

Summary:
This PR aims to ensure reliable cookie deletion by setting MaxAge to null in the CookieOptions used by ResponseCookies.Delete, addressing inconsistencies identified in issue #52159.

Description:
To resolve inconsistencies in cookie deletion across browsers, this update modifies the ResponseCookies.Delete method to reset MaxAge to null. Previously, retained MaxAge values could prevent browsers from recognizing that cookies were meant to be deleted.

Technical Changes:

Enforced MaxAge = null in CookieOptions during cookie deletion..

Fixes
#52159 by standardizing cookie deletion behavior across all browsers.

[amcasey]

CI failure looks like network flakiness. Re-running.

[MattyLeslie]

Thanks @amcasey, I have submitted the PR.

[amcasey]

I like it! Do we need to update here and here as well?

[MattyLeslie]

Thanks for the review @amcasey, I believe the ChunkingCookieManager.cs will need to make use of the same logic when deleting chunks, I have updated the relevant areas and added the recommended comments.

[amcasey]

Thanks!