Bump wp-coding-standards/wpcs from 0.14.1 to 2.1.1

Bumps [wp-coding-standards/wpcs](https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards) from 0.14.1 to 2.1.1.
- [Release notes](https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards/releases)
- [Changelog](https://github.com/WordPress/WordPress-Coding-Standards/blob/develop/CHANGELOG.md)
- [Commits](WordPress/WordPress-Coding-Standards@0.14.1...2.1.1)

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

composer.json

@@ -12,7 +12,7 @@
         "dealerdirect/phpcodesniffer-composer-installer": "^0.4.3",
         "phpunit/phpunit": "^4.8",
         "squizlabs/php_codesniffer": "*",
-        "wp-coding-standards/wpcs": "^0.14",
+        "wp-coding-standards/wpcs": "^2.1",
         "exussum12/coverage-checker": "^0.8.0",
         "10up/wp_mock": "0.2.0"
     },