Updating laravel version to pass security check.

Author: AleksandarCole

composer.json

@@ -8,22 +8,22 @@
  ],
  "license": "MIT",
  "require": {
- "php": "^7.1.3",
+ "php": "^7.3.0",
  "fideloper/proxy": "^4.0",
  "laracasts/flash": "^3.0",
- "laravel/framework": "5.7.*",
+ "laravel/framework": "6.18.*",
  "laravel/tinker": "^1.0",
  "phpmd/phpmd": "^2.6"
  },
  "require-dev": {
  "beyondcode/laravel-dump-server": "^1.0",
  "filp/whoops": "^2.0",
  "fzaninotto/faker": "^1.4",
- "laravel/dusk": "^4.0",
+ "laravel/dusk": "^6.6.1",
  "mockery/mockery": "^1.0",
  "nunomaduro/collision": "^2.0",
  "phpunit/php-code-coverage": "6.1.*",
- "phpunit/phpunit": "^7.0",
+ "phpunit/phpunit": "^7.5.15",
  "squizlabs/php_codesniffer": "^3.3",
  "staudenmeir/dusk-updater": "^1.1"
  },