Update packages (#233)

Author: pkevan

composer.json

@@ -23,7 +23,7 @@
 		"wp-coding-standards/wpcs": "2.3.*",
 		"phpunit/phpunit": "^9",
 		"spatie/phpunit-watcher": "^1.23",
-		"yoast/phpunit-polyfills": "^1.0"
+		"yoast/phpunit-polyfills": "^1.1"
 	},
 	"scripts": {
 		"lint": [