Merge pull request #1 from fd6130/update_composer_json

Update composer.json packages version

Author: fd6130

composer.json

@@ -12,7 +12,7 @@
         }
     ],
     "require": {
-        "php": ">=7.2.0",
+        "php": ">=7.3",
         "symfony/console": "~2.3|~3.0|~4.0|~5.0",
         "symfony/dependency-injection": "~2.3|~3.0|~4.0|~5.0",
         "symfony/expression-language": "~2.4|~3.0|~4.0|~5.0",
@@ -23,7 +23,7 @@
         "symfony/process": "~2.3|~3.0|~4.0|~5.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6.1"
+        "phpunit/phpunit": "^9.1"
     },
     "config": {
         "sort-packages": true