Add yaml-sort-checker to dev dependencies

Author: Abijeet

composer.json

@@ -38,7 +38,8 @@
 		"phpunit/phpunit": "9.6.20",
 		"mediawiki/mediawiki-codesniffer": "48.0.0",
 		"mediawiki/mediawiki-phan-config": "0.17.0",
-		"mustangostang/spyc": "0.6.3"
+		"mustangostang/spyc": "0.6.3",
+		"mhujer/yaml-sort-checker": "1.5.0"
 	},
 
 	"support": {
@@ -60,7 +61,8 @@
 			"@composer validate --no-interaction",
 			"phpunit",
 			"@cs",
-			"@phan"
+			"@phan",
+			"@yaml-sort-check"
 		]
 	},
 	"config": {