Update phpunit/phpunit requirement from ~4.8|~9|~11 to ^12.2.7

---
updated-dependencies:
- dependency-name: phpunit/phpunit
  dependency-version: 12.2.7
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

composer.json

@@ -24,7 +24,7 @@
 		"php" : ">=5.3.0"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "~4.8|~9|~11"
+		"phpunit/phpunit": "^12.2.7"
 	},
 	"autoload"   : {
 		"files": ["src/array.php"]