[BETA] ci: update reference docs

[astrobot-houston]

This PR is auto-generated by a nightly GitHub action to update the reference docs from source code in withastro/astro.

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[ArmandPhilippot]

These sections have been added in 5.17 but main is not yet merged in next (withastro/astro#15348), so we shouldn't remove them on v6 and this is safe to close!