Added symfony 7 support

Author: toooni

Diff for: composer.json

@@ -12,10 +12,10 @@
     "minimum-stability": "stable",
     "require": {
         "php": "^7.4|^8.0",
-        "symfony/dependency-injection": "^4.1|^5.0|^6.0",
-        "symfony/http-foundation": "^4.1|^5.0|^6.0",
-        "symfony/http-kernel": "^4.1|^5.0|^6.0",
-        "symfony/config": "^4.1|^5.0|^6.0",
+        "symfony/dependency-injection": "^5.0|^6.0|^7.0",
+        "symfony/http-foundation": "^5.0|^6.0|^7.0",
+        "symfony/http-kernel": "^5.0|^6.0|^7.0",
+        "symfony/config": "^5.0|^6.0|^7.0",
         "plivo/php-sdk": "^4.0"
     },
     "autoload": {

Diff for: src/Invit/PlivoBundle/DependencyInjection/Configuration.php

@@ -10,7 +10,7 @@ class Configuration implements ConfigurationInterface
     /**
      * {@inheritDoc}
      */
-    public function getConfigTreeBuilder()
+    public function getConfigTreeBuilder(): TreeBuilder
     {
         $treeBuilder = new TreeBuilder('invit_plivo');
 

Diff for: src/Invit/PlivoBundle/DependencyInjection/InvitPlivoExtension.php

@@ -12,7 +12,7 @@ class InvitPlivoExtension extends Extension
     /**
      * {@inheritDoc}
      */
-    public function load(array $configs, ContainerBuilder $container)
+    public function load(array $configs, ContainerBuilder $container): void
     {
         $configuration = new Configuration();
         $config = $this->processConfiguration($configuration, $configs);