Merge pull request #941 from humanmade/dependabot/composer/v21-branch/lucatume/wp-browser-approx-4.5.6

Update lucatume/wp-browser requirement from ~4.5.5 to ~4.5.6

Author: ferschubert-hm

composer.json

@@ -22,7 +22,7 @@
 		"wp-phpunit/wp-phpunit": "6.7.0",
 		"yoast/phpunit-polyfills": "^2.0.5",
 		"phpunit/phpunit": "~9.6",
-		"lucatume/wp-browser": "~4.5.5",
+		"lucatume/wp-browser": "~4.5.6",
 		"codeception/module-asserts": "~3.2",
 		"codeception/module-phpbrowser": "~3.0",
 		"codeception/module-webdriver": "~3.0",