Update group name in CODEOWNERS

[tomwheeler]

I transferred this repo from the temporalio org to the temporal-community org. There is no Education team within the latter as there was in the former, but since this is a subset of @temporal-community/devrel, I updated the CODEOWNERS file to specify that as the owner in order to make the file valid following the transfer.

[Copilot]

Pull Request Overview

This PR updates the CODEOWNERS file to reflect the repository transfer from the temporalio organization to the temporal-community organization. The change updates the code ownership assignment from the non-existent Education team to the DevRel team within the new organization structure.

• Updates CODEOWNERS file to use the correct team reference for the new organization
• Maintains proper code ownership following the repository transfer

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[Copilot]

The comment still references the 'Temporal Education team' but the actual ownership has been changed to @temporal-community/devrel. This comment should be updated to reflect the current maintainer team.

Suggested change

	# This repository is maintained by the Temporal Education team
	# This repository is maintained by the @temporal-community/devrel team