Update dependency fabric.js to v4

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
fabric.js (source)	major	3.6.3 -> 4.0.0

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Release Notes

kangax/fabric.js

### [`v4.0.0`](https://togithub.com/kangax/fabric.js/blob/master/CHANGELOG.md#​400) [Compare Source](https://togithub.com/kangax/fabric.js/compare/v3.6.3...v4.0.0) - fixed the gesture module to not break with 4.0 [#​6491](https://togithub.com/fabricjs/fabric.js/pull/6491); - fix(fabric.IText): copy style in non full mode when typing text [#​6454](https://togithub.com/fabricjs/fabric.js/pull/6454); - feat(fabric.Controls) expose the extra utils for control handling. Breaking: rename fabric.controlHandlers and fabric.controlRenderers to fabric.controlsUtils.

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