misc: add timeout field to EnqueuedCommandAttributes type

[true2fik]

• Closes Trying to set the timeout for a custom query results in a typescript error #30198

Additional details

This fixes typescript typing issues when adding custom queries as outlined in https://docs.cypress.io/api/cypress-api/custom-queries

PR Tasks

• Have tests been added/updated?
• Has a PR for user-facing changes been opened in cypress-documentation?
• Have API changes been updated in the type definitions?

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