Bump min Sf 4 version to 4.4 and drop direct PHPUnit dep

Author: bocharsky-bw

composer.json

@@ -11,16 +11,15 @@
     "require": {
         "php": "^7.2 || ^8.0",
         "nikic/php-parser": "^3.0 || ^4.0",
-        "symfony/finder": "^3.4 || ^4.3 || ^5.0",
+        "symfony/finder": "^3.4 || ^4.4 || ^5.0",
         "twig/twig": "^2.0 || ^3.0",
         "doctrine/annotations": "^1.7"
     },
     "require-dev": {
         "symfony/phpunit-bridge": "^5.0",
-        "symfony/translation": "^3.4 || ^4.3 || ^5.0",
-        "symfony/validator": "^3.4 || ^4.3 || ^5.0",
-        "symfony/twig-bridge": "^3.4 || ^4.3 || ^5.0",
-        "phpunit/phpunit": "^8.4",
+        "symfony/translation": "^3.4 || ^4.4 || ^5.0",
+        "symfony/validator": "^3.4 || ^4.4 || ^5.0",
+        "symfony/twig-bridge": "^3.4 || ^4.4 || ^5.0",
         "knplabs/knp-menu": "^3.1"
     },
     "autoload": {