doc: clarify async caveats for `events.once()` #56465

Triggered via push February 12, 2026 16:39

main

Status Success

Total duration 2m 50s

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doc.yml

on: push

Produced during runtime

Name	Size	Digest
docs	5.61 MB	`sha256:be473266bf36b5dc4b282c4503f57529d7eab508c43c42ac6bf1daa682c912a9`