Bump stylelint-config-primer from 3.0.1 to 6.0.0

Bumps [stylelint-config-primer](https://github.com/primer/stylelint-config-primer) from 3.0.1 to 6.0.0.
- [Release notes](https://github.com/primer/stylelint-config-primer/releases)
- [Changelog](https://github.com/primer/stylelint-config-primer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/primer/stylelint-config-primer/commits/v6.0.0

)

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

package.json

@@ -7,7 +7,7 @@
   "bugs": "https://github.com/pmarsceill/just-the-docs/issues",
   "devDependencies": {
     "stylelint": "^9.10.1",
-    "stylelint-config-primer": "^3.0.1"
+    "stylelint-config-primer": "^6.0.0"
   },
   "dependencies": {},
   "scripts": {