essential changefeed supported region update

[shiyuhang0]

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[gemini-code-assist]

Summary of Changes

Hello @shiyuhang0, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates the documentation for TiDB Cloud's essential changefeed feature to reflect an expansion of supported AWS regions. The change ensures that users have accurate and up-to-date information regarding the geographical availability of this feature.

Highlights

• AWS Region Support: Expanded the list of supported AWS regions for the essential changefeed feature to include us-west-2 and eu-central-1.

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[gemini-code-assist]

Code Review

This pull request updates the list of supported AWS regions for the changefeed feature. My review includes a suggestion to sort the region list alphabetically for better readability, as per the repository's style guide. The change is otherwise correct and follows the existing document structure.

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-01-19 08:33:17.063576193 +0000 UTC m=+396424.677533049: ☑️ agreed by hfxsd.

[hfxsd]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hfxsd

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