Bump stylelint from 13.7.2 to 13.8.0

Bumps [stylelint](https://github.com/stylelint/stylelint) from 13.7.2 to 13.8.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/master/CHANGELOG.md)
- [Commits](stylelint/stylelint@13.7.2...13.8.0)

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

Author: dependabot[bot]

package.json

@@ -42,7 +42,7 @@
     "babel-eslint": "^10.1.0",
     "snazzy": "^8.0.0",
     "standard": "^15.0.0",
-    "stylelint": "^13.7.2",
+    "stylelint": "^13.8.0",
     "stylelint-config-standard": "^19.0.0",
     "stylelint-config-styled-components": "^0.1.1",
     "stylelint-processor-styled-components": "^1.10.0"