Bump the stryker group with 3 updates (#1199)

Bumps the stryker group with 3 updates: [@stryker-mutator/core](https://github.com/stryker-mutator/stryker-js/tree/HEAD/packages/core), [@stryker-mutator/mocha-runner](https://github.com/stryker-mutator/stryker-js/tree/HEAD/packages/mocha-runner) and [@stryker-mutator/typescript-checker](https://github.com/stryker-mutator/stryker-js/tree/HEAD/packages/typescript-checker).


Updates `@stryker-mutator/core` from 8.5.0 to 8.6.0
- [Release notes](https://github.com/stryker-mutator/stryker-js/releases)
- [Changelog](https://github.com/stryker-mutator/stryker-js/blob/master/packages/core/CHANGELOG.md)
- [Commits](https://github.com/stryker-mutator/stryker-js/commits/v8.6.0/packages/core)

Updates `@stryker-mutator/mocha-runner` from 8.5.0 to 8.6.0
- [Release notes](https://github.com/stryker-mutator/stryker-js/releases)
- [Changelog](https://github.com/stryker-mutator/stryker-js/blob/master/packages/mocha-runner/CHANGELOG.md)
- [Commits](https://github.com/stryker-mutator/stryker-js/commits/v8.6.0/packages/mocha-runner)

Updates `@stryker-mutator/typescript-checker` from 8.5.0 to 8.6.0
- [Release notes](https://github.com/stryker-mutator/stryker-js/releases)
- [Changelog](https://github.com/stryker-mutator/stryker-js/blob/master/packages/typescript-checker/CHANGELOG.md)
- [Commits](https://github.com/stryker-mutator/stryker-js/commits/v8.6.0/packages/typescript-checker)

---
updated-dependencies:
- dependency-name: "@stryker-mutator/core"
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: stryker
- dependency-name: "@stryker-mutator/mocha-runner"
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: stryker
- dependency-name: "@stryker-mutator/typescript-checker"
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: stryker
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>