Coding Standards: Upgrade WPCS to version 3.4.0.

The impact on existing WordPress core code is expected to be minimal. The release updates some sniffs to account for changes in recent WordPress versions up to 7.0.

References:
* [https://github.com/WordPress/WordPress-Coding-Standards/releases/tag/3.4.0 WPCS 3.4.0 release notes]
* [WordPress/WordPress-Coding-Standards@3.3.0...3.4.0 Full list of changes in WPCS 3.4.0]

Follow-up to [56695], [56799], [57378], [57986], [60523], [61306].

Props jrf, dingo_d, garyj, rodrigosprimo, mattgaldino, pamprn, jasonkenison, jonmcpartland, rafaelfunchal, paulgibbs, tikifez, dd32, bhubbard, petitphp, paulopmt1, nicsevic, diegogarciarodrigues, Soean, SergeyBiryukov.
Fixes #65659.

git-svn-id: https://develop.svn.wordpress.org/trunk@62796 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

composer.json

@@ -24,7 +24,7 @@
 	"require-dev": {
 		"composer/ca-bundle": "1.5.12",
 		"squizlabs/php_codesniffer": "3.13.5",
-		"wp-coding-standards/wpcs": "~3.3.0",
+		"wp-coding-standards/wpcs": "~3.4.0",
 		"phpcompatibility/phpcompatibility-wp": "~2.1.3",
 		"phpstan/phpstan": "2.2.2",
 		"phpstan/phpstan-phpunit": "2.0.16",