Changes added for setting minimum Symfony version to 7

composer.json

@@ -13,7 +13,7 @@
     "homepage": "http://github.com/apigee/apigee-client-php",
     "license": "Apache-2.0",
     "require": {
-        "php": "~8.1 || ~8.2 || ~8.3",
+        "php": "~8.3",
         "ext-json": "*",
         "ext-openssl": "*",
         "ext-reflection": "*",
@@ -28,10 +28,10 @@
         "php-http/message-factory": "^1.0",
         "phpdocumentor/reflection-docblock": "^5.0",
         "psr/http-message": "^1.0 || ^2.0",
-        "symfony/options-resolver": "^6.4.8 || ^7.1.1",
-        "symfony/property-access": "^6.4.9 || ^7.1.4",
-        "symfony/property-info": "^6.4.9 || ^7.1.3",
-        "symfony/serializer": "^6.4.9 || ^7.1.5"
+        "symfony/options-resolver": "^7.1.1",
+        "symfony/property-access": "^7.1.4",
+        "symfony/property-info": "^7.1.3",
+        "symfony/serializer": "^7.1.5"
     },
     "require-dev": {
         "dms/phpunit-arraysubset-asserts": "^0.4.0",
@@ -46,7 +46,7 @@
         "phpmetrics/phpmetrics": "^2.7",
         "phpunit/phpunit": "^9.6",
         "sebastian/comparator": "^4.0.5",
-        "symfony/cache": "^6.4.9 || ^7.1.5",
+        "symfony/cache": "^7.1.5",
         "vimeo/psalm": "^5.20"
     },
     "autoload": {