Bump stylelint from 13.0.0 to 13.1.0 (#1997)

Bumps [stylelint](https://github.com/stylelint/stylelint) from 13.0.0 to 13.1.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/master/CHANGELOG.md)
- [Commits](stylelint/stylelint@13.0.0...13.1.0)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -107,7 +107,7 @@
     "request": "2.88.0",
     "serialize-javascript": "2.1.2",
     "start-server-and-test": "1.10.8",
-    "stylelint": "13.0.0",
+    "stylelint": "13.1.0",
     "stylelint-config-standard": "19.0.0",
     "ts-node": "8.6.2",
     "tslint": "5.20.1",