chore(deps): update dependency vis-util to v5.0.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
vis-util	5.0.5 -> 5.0.6

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Release Notes

visjs/vis-util (vis-util)

### [`v5.0.6`](https://togithub.com/visjs/vis-util/releases/tag/v5.0.6) [Compare Source](https://togithub.com/visjs/vis-util/compare/v5.0.5...v5.0.6) ##### Performance Improvements - remove add/remove event listener polyfills ([#​1417](https://togithub.com/visjs/vis-util/issues/1417)) ([8e77607](https://togithub.com/visjs/vis-util/commit/8e7760785deff580ff9c8e6be2bd7c0dfda20e73))

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