Coding Standards: Upgrade WPCS to version 3.0.1.

In WordPressCS 3.0.0, the functionality of the `WordPress.Security.EscapeOutput` sniff was updated to report unescaped message parameters passed to exceptions created in `throw` statements. This specific violation now has a separate error code: `ExceptionNotEscaped`. This will allow users to ignore or exclude that specific error code.

The error code(s) for other escaping issues flagged by the sniff remain unchanged.

References:
* [https://github.com/WordPress/WordPress-Coding-Standards/releases/tag/3.0.1 WPCS 3.0.1 release notes]
* [WordPress/WordPress-Coding-Standards@3.0.0...3.0.1 Full list of changes in WPCS 3.0.1]

Follow-up to [56695].

Props jrf, bjorsch, dawidurbanski.
See #59161.

git-svn-id: https://develop.svn.wordpress.org/trunk@56799 602fd350-edb4-49c9-b593-d223f7449a82

composer.json

@@ -17,7 +17,7 @@
 	},
 	"require-dev": {
 		"squizlabs/php_codesniffer": "3.7.2",
-		"wp-coding-standards/wpcs": "~3.0.0",
+		"wp-coding-standards/wpcs": "~3.0.1",
 		"phpcompatibility/phpcompatibility-wp": "~2.1.3",
 		"yoast/phpunit-polyfills": "^1.1.0"
 	},