Update to Symfony 4.4

Author: francoispluchino

composer.json

@@ -15,12 +15,12 @@
  "prefer-stable": true,
  "require": {
  "php": "^7.4.0",
- "symfony/options-resolver": "^4.2.0",
- "symfony/property-access": "^4.2.0"
+ "symfony/options-resolver": "^4.4.0",
+ "symfony/property-access": "^4.4.0"
  },
  "require-dev": {
- "symfony/dependency-injection": "^4.2.0",
- "symfony/security": "^4.2.0"
+ "symfony/dependency-injection": "^4.4.0",
+ "symfony/security": "^4.4.0"
  },
  "autoload": {
  "psr-4": { "Klipper\\Component\\DefaultValue\\": "" },