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 focuses on updating the best-practices-for-security-configuration.md document to ensure its accuracy and relevance. It primarily involves removing outdated references to the 'TiFlow' component and its ports, while introducing current components like 'DM master', 'DM worker', and 'TiCDC' to the list of default listening ports. Additionally, 'TiDB Binlog' entries have been removed, and minor formatting adjustments were made to maintain documentation quality.

Highlights

• Documentation Update: Removed all mentions of the 'TiFlow' component and its associated default ports from the security configuration best practices documentation.
• Component Port Updates: Replaced the 'TiFlow' entries with 'DM master', 'DM worker', and 'TiCDC' components, updating the default port list to reflect current TiDB architecture.
• Removed Legacy Components: Eliminated 'TiDB Binlog' component entries and their default ports from the security configuration table.
• Formatting Consistency: Applied minor formatting adjustments to the table headers for improved readability and consistency.

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[gemini-code-assist]

Code Review

This pull request correctly updates the component names in the security best practices documentation, replacing outdated terms like 'TiFlow' and 'TiDB Binlog' with 'DM master', 'DM worker', and 'TiCDC'. The changes also include formatting improvements to the table of default ports, enhancing readability. I've suggested a further formatting tweak to perfectly align the table for consistency and clarity, which also resolves a minor rendering issue.

[hfxsd]

/approve

[ti-chi-bot]

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This pull-request has been approved by: hfxsd

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