security: remove mention of "TiFlow" (#21886)

[ti-chi-bot]

This is an automated cherry-pick of #21886

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[gemini-code-assist]

Summary of Changes

Hello @ti-chi-bot, 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 best-practices-for-security-configuration.md document to ensure its accuracy regarding the components and their default listening ports within a TiDB cluster. It removes references to deprecated or renamed components like 'TiFlow' and 'TiDB Binlog', replacing them with current components such as 'DM master', 'DM worker', and 'TiCDC'. This change helps maintain up-to-date security documentation for users.

Highlights

• Documentation Update: Removed outdated references to 'TiFlow' and 'TiDB Binlog' components from the security configuration best practices document.
• Component Port Updates: Added new entries for 'DM master', 'DM worker', and 'TiCDC' components, including their default listening ports, to reflect current system architecture.
• Formatting Improvements: Applied minor formatting adjustments to the table headers and specific entries within the security configuration document for better consistency.

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[gemini-code-assist]

Code Review

This pull request updates the security best practices documentation by removing mentions of the deprecated "TiFlow" component and replacing them with the correct component names: DM master, DM worker, and TiCDC. It also removes the deprecated TiDB Binlog component from the list of ports and improves the formatting of the markdown table for better readability. My review identifies one minor formatting inconsistency in the table header and provides a suggestion to fix it. Overall, the changes are accurate and improve the documentation.

[hfxsd]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hfxsd

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