Fix up constraints.

Author: dereuromark

composer.json

@@ -12,13 +12,13 @@
 		}
 	],
 	"require": {
-		"php": ">=7.3",
+		"php": ">=8.1",
 		"php-collective/code-sniffer": "^0.1.0",
 		"slevomat/coding-standard": "^8.3.0",
 		"squizlabs/php_codesniffer": "^3.7.0"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "^9.5",
+		"phpunit/phpunit": "^10.3",
 		"phpstan/phpstan": "^1.0.0"
 	},
 	"autoload": {