Allow Symfony 7 (#1409)

* Allow Symfony 7

* Fix PHPUnit deprecations

Author: nicolas-grekas

composer.json

@@ -14,9 +14,9 @@
     "require": {
         "php": "^7.2.5 || ^8.0",
         "async-aws/core": "^1.0",
-        "symfony/config": "^4.4 || ^5.0 || ^6.0",
-        "symfony/dependency-injection": "^4.4 || ^5.0 || ^6.0",
-        "symfony/http-kernel": "^4.4 || ^5.0 || ^6.0"
+        "symfony/config": "^4.4 || ^5.0 || ^6.0 || ^7.0",
+        "symfony/dependency-injection": "^4.4 || ^5.0 || ^6.0 || ^7.0",
+        "symfony/http-kernel": "^4.4 || ^5.0 || ^6.0 || ^7.0"
     },
     "require-dev": {
         "async-aws/s3": "^1.0",
@@ -25,7 +25,7 @@
         "async-aws/ssm": "^1.0",
         "matthiasnoback/symfony-config-test": "^4.1",
         "nyholm/symfony-bundle-test": "1.x-dev#0555e4898e1b05655a4bdf52ba10c7f56611a514 as 1.9.0",
-        "symfony/cache": "^4.4 || ^5.0 || ^6.0"
+        "symfony/cache": "^4.4 || ^5.0 || ^6.0 || ^7.0"
     },
     "autoload": {
         "psr-4": {