fix slackInteractions.shortcut parameter docs.

[howyi]

Summary

This pull request fixes a few errors in slackInteractions documents.

ShortcutConstraints requires callbackId, but the documentation written callback

node-slack-sdk/packages/interactive-messages/src/adapter.ts

Line 706 in 67a2a5f

callbackId?: string | RegExp;

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[CLAassistant]

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