Update phpunit/phpunit requirement from ^4.8.36 || ^5.7.21 || ^6.0 ||…

… ^7.0 || ^8.0 || ^9.0 || ^10.0 to ^4.8.36 || ^5.7.21 || ^6.0 || ^7.0 || ^8.0 || ^9.0 || ^10.0 || ^11.0

---
updated-dependencies:
- dependency-name: phpunit/phpunit
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -3,7 +3,7 @@
     "description": "This package provides ArraySubset and related asserts once deprecated in PHPUnit 8",
     "type": "library",
     "require": {
-        "phpunit/phpunit": "^4.8.36 || ^5.7.21 || ^6.0 || ^7.0 || ^8.0 || ^9.0 || ^10.0",
+        "phpunit/phpunit": "^4.8.36 || ^5.7.21 || ^6.0 || ^7.0 || ^8.0 || ^9.0 || ^10.0 || ^11.0",
         "php": "^5.4 || ^7.0 || ^8.0"
     },
     "license": "MIT",