Upgrade FM to last version due to vulnerability

See GHSA-9f46-5r25-5wfm

Author: jaapmarcus

install/deb/filemanager/filegator/composer.json

@@ -5,21 +5,20 @@
     "type": "project",
     "config": {
         "platform": {
-            "php": "7.1.3"
+            "php": "7.2.5"
         }
     },
     "require": {
-        "php": "^7.1.3",
+        "php": "^7.2",
         "monolog/monolog": "^1.24",
         "nikic/fast-route": "^1.3",
         "symfony/security-csrf": "^4.4",
         "symfony/http-foundation": "^4.4",
         "dibi/dibi": "^4.1",
         "php-di/php-di": "^6.0",
         "rakit/validation": "^1.1",
-        "league/flysystem": "^1.0",
-        "league/flysystem-ziparchive": "^1.0",
-        "league/flysystem-sftp": "^1.0"
+        "league/flysystem": "^1.1",
+        "league/flysystem-ziparchive": "^1.0"
     },
     "authors": [
         {
@@ -38,7 +37,7 @@
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "^7.5",
+        "phpunit/phpunit": "^8.0",
         "symfony/var-dumper": "^4.4",
         "league/flysystem-memory": "^1.0",
         "phpstan/phpstan": "^0.11.8"