build: Updating mediawiki/mediawiki-codesniffer to 23.0.0

Change-Id: Ia4877700ab5017e56ceb19da9678a71f138d910b

composer.json

@@ -1,7 +1,7 @@
 {
 	"require-dev": {
 		"jakub-onderka/php-parallel-lint": "1.0.0",
-		"mediawiki/mediawiki-codesniffer": "22.0.0",
+		"mediawiki/mediawiki-codesniffer": "23.0.0",
 		"jakub-onderka/php-console-highlighter": "0.3.2",
 		"mediawiki/minus-x": "0.3.1",
 		"mediawiki/mediawiki-phan-config": "0.3.0"