Merge pull request #454 from Yoast/JRF/composer-update-test-utils

Composer: update test dependencies

Author: jrfnl

composer.json

@@ -28,7 +28,7 @@
 		"composer/installers": "^1.12.0 || ^2.0"
 	},
 	"require-dev": {
-		"yoast/wp-test-utils": "^1.2.0",
+		"yoast/wp-test-utils": "^1.2.1",
 		"yoast/yoastcs": "^3.3.0"
 	},
 	"autoload": {