feat(sources): update documentation (#2228)

> ⚠️ This Pull Request updates daily and will overwrite **all** manual
changes pushed to the branch

Updates the documentation source from upstream. See details in [workflow
run].

[Workflow Run]:
https://github.com/cdklabs/awscdk-service-spec/actions/runs/19524636408

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*Automatically created by projen via the "update-source-documentation"
workflow*

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: aws-cdk-automation