chore: add dispatch back

[YiniXu9506]

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What is changed, added or deleted? (Required)

Trigger website build when pr merged.

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• master (the latest development version)
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• v5.1 (TiDB 5.1 versions)
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What is the related PR or file link(s)?

• This PR is translated from: chore: add dispatch back docs#6404
• Other reference link(s):

Do your changes match any of the following descriptions?

• Delete files
• Change aliases
• Need modification after applied to another branch
• Might cause conflicts after applied to another branch

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• TomShawn

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[TomShawn]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 1f90dce