chore(deps): update dependency happy-dom to v9.8.4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
happy-dom	9.8.2 -> 9.8.4

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Release Notes

capricorn86/happy-dom

### [`v9.8.4`](https://togithub.com/capricorn86/happy-dom/releases/tag/v9.8.4) [Compare Source](https://togithub.com/capricorn86/happy-dom/compare/v9.8.3...v9.8.4) ##### :construction_worker_man: Patch fixes - Fixes bug related to adding multiple event listeners with the "once" option, which would cause the listener loop to go out of bounds. ([#​805](https://togithub.com/capricorn86/happy-dom/issues/805)) *** Thank you [@​btea](https://togithub.com/btea) for your contribution! ### [`v9.8.3`](https://togithub.com/capricorn86/happy-dom/releases/tag/v9.8.3) [Compare Source](https://togithub.com/capricorn86/happy-dom/compare/v9.8.2...v9.8.3) ##### :construction_worker_man: Patch fixes - Adds validation for if the node to insert is an ancestor in `Node.appendChild()`and `Node.insertBefore()`. ([#​643](https://togithub.com/capricorn86/happy-dom/issues/643)) *** Thank you [@​btea](https://togithub.com/btea) for your contribution!

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