Bump stylelint-config-twbs-bootstrap from 5.0.0 to 6.0.0 (#37087)

Bump stylelint-config-twbs-bootstrap from 5.0.0 to 6.0.0 (#37087)

Bumps [stylelint-config-twbs-bootstrap](https://github.com/twbs/stylelint-config-twbs-bootstrap) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/twbs/stylelint-config-twbs-bootstrap/releases)
- [Commits](https://github.com/twbs/stylelint-config-twbs-bootstrap/compare/v5.0.0...v6.0.0)

---
updated-dependencies:
- dependency-name: stylelint-config-twbs-bootstrap
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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