composer update

vendor/symfony/event-dispatcher-contracts/LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2018-2019 Fabien Potencier
+Copyright (c) 2018-2020 Fabien Potencier
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

vendor/symfony/event-dispatcher-contracts/composer.json

@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": "^7.1.3"
+        "php": ">=7.1.3"
     },
     "suggest": {
         "psr/event-dispatcher": "",
@@ -29,6 +29,10 @@
     "extra": {
         "branch-alias": {
             "dev-master": "1.1-dev"
+        },
+        "thanks": {
+            "name": "symfony/contracts",
+            "url": "https://github.com/symfony/contracts"
         }
     }
 }