update version and release date

[xiangyan99]

Description

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

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.

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 azure-core’s package version and promotes the top CHANGELOG entry from an unreleased section to a dated release entry.

Changes:

• Updated azure-core version from 1.40.1 to 1.41.0.
• Updated the top CHANGELOG entry to ## 1.41.0 (2026-05-07) and removed empty section headers.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
sdk/core/azure-core/CHANGELOG.md	Updates the top release entry to 1.41.0 with a specific release date and streamlines the section headers.
sdk/core/azure-core/azure/core/_version.py	Bumps the package version constant to 1.41.0.