Bump @wdio/mocha-framework from 7.19.5 to 8.4.0

Bumps [@wdio/mocha-framework](https://github.com/webdriverio/webdriverio/tree/HEAD/packages/wdio-mocha-framework) from 7.19.5 to 8.4.0.
- [Release notes](https://github.com/webdriverio/webdriverio/releases)
- [Changelog](https://github.com/webdriverio/webdriverio/blob/main/CHANGELOG.md)
- [Commits](https://github.com/webdriverio/webdriverio/commits/v8.4.0/packages/wdio-mocha-framework)

---
updated-dependencies:
- dependency-name: "@wdio/mocha-framework"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]