Update symplify/easy-coding-standard requirement from ^11.4 to ^12.3 (#660)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

composer.json

@@ -22,7 +22,7 @@
 		"phpstan/phpstan-phpunit": "^1.0",
 		"phpstan/phpstan-strict-rules": "^1.1",
 		"phpunit/phpunit": "^8.5|^9.5",
-		"symplify/easy-coding-standard": "^11.4",
+		"symplify/easy-coding-standard": "^12.3",
 		"tomasvotruba/unused-public": "^1.0",
 		"vlucas/phpdotenv": "^5.4"
 	},