chore(deps): update dependency webdriverio to v8.6.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
webdriverio (source)	8.6.7 -> 8.6.8

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Release Notes

webdriverio/webdriverio

### [`v8.6.8`](https://togithub.com/webdriverio/webdriverio/blob/HEAD/CHANGELOG.md#v868-2023-03-24) [Compare Source](https://togithub.com/webdriverio/webdriverio/compare/v8.6.7...v8.6.8) ##### :bug: Bug Fix - `wdio-junit-reporter` - [#​10035](https://togithub.com/webdriverio/webdriverio/pull/10035) Handle `file://` in specs of junit reporter - Closes [#​9352](https://togithub.com/webdriverio/webdriverio/issues/9352) ([@​nextlevelbeard](https://togithub.com/nextlevelbeard)) ##### :nail_care: Polish - `wdio-allure-reporter` - [#​10032](https://togithub.com/webdriverio/webdriverio/pull/10032) Add missing information and fix allure global result for cucumber tests ([@​lacell75](https://togithub.com/lacell75)) ##### :memo: Documentation - [#​10041](https://togithub.com/webdriverio/webdriverio/pull/10041) \[Docs] Fixes to Lit component testing page ([@​augustjk](https://togithub.com/augustjk)) ##### Committers: 3 - Augustine Kim ([@​augustjk](https://togithub.com/augustjk)) - Fabien CELLIER ([@​lacell75](https://togithub.com/lacell75)) - Ricardo Barbosa ([@​nextlevelbeard](https://togithub.com/nextlevelbeard))

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