Bump stylelint and stylelint-config-twbs-bootstrap

Bumps [stylelint](https://github.com/stylelint/stylelint) and [stylelint-config-twbs-bootstrap](https://github.com/twbs/stylelint-config-twbs-bootstrap). These dependencies needed to be updated together.

Updates `stylelint` from 15.11.0 to 16.1.0
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@15.11.0...16.1.0)

Updates `stylelint-config-twbs-bootstrap` from 12.0.0 to 13.0.0
- [Release notes](https://github.com/twbs/stylelint-config-twbs-bootstrap/releases)
- [Commits](twbs/stylelint-config-twbs-bootstrap@v12.0.0...v13.0.0)

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

Signed-off-by: dependabot[bot] <support@github.com>