Increment version for eventgrid releases

[azure-sdk]

Increment package version after release of azure-eventgrid

[Copilot]

Pull Request Overview

This PR increments the package version for the Azure EventGrid release and updates the changelog accordingly.

• Updated the version constant in _version.py from "4.22.0" to "4.22.1".
• Added a new changelog section for version 4.22.1 with placeholder headers.

Reviewed Changes

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

File	Description
sdk/eventgrid/azure-eventgrid/azure/eventgrid/_version.py	Updates the version constant to reflect the new release
sdk/eventgrid/azure-eventgrid/CHANGELOG.md	Adds a new changelog entry for version 4.22.1 with placeholder sections

[Copilot]

The new changelog entry for version 4.22.1 contains header sections without detailed release notes. Consider adding specific descriptions under each section to provide clear context for the release.

[github-actions]

Hi @azure-sdk. Thank you for your interest in helping to improve the Azure SDK experience and for your contribution. We've noticed that there hasn't been recent engagement on this pull request. If this is still an active work stream, please let us know by pushing some changes or leaving a comment. Otherwise, we'll close this out in 7 days.

[github-actions]

Hi @azure-sdk. Thank you for your contribution. Since there hasn't been recent engagement, we're going to close this out. Feel free to respond with a comment containing /reopen if you'd like to continue working on these changes. Please be sure to use the command to reopen or remove the no-recent-activity label; otherwise, this is likely to be closed again with the next cleanup pass.