feat(dom): AbortSignal timeout

[johanneswuerbach]

Fixes #48003

[typescript-bot]

It looks like you've sent a pull request to update our 'lib' files. These files aren't meant to be edited by hand, as they consist of last-known good states of the compiler and are generated from 'src/lib' or possibly our lib generator. Unless this is necessary, consider closing the pull request and sending a separate PR to update 'src/lib' or https://github.com/microsoft/TypeScript-DOM-lib-generator

[typescript-bot]

It looks like you've sent a pull request to update some generated declaration files related to the DOM. These files aren't meant to be edited by hand, as they are synchronized with files in the TSJS-lib-generator repository. You can read more here. For house-keeping purposes, this pull request will be closed.