Drop support for PHP < 7.4 and Symfony < 4.4, fix deprecations (#19)

.github/workflows/main.yml

@@ -14,11 +14,11 @@ jobs:
           - php: 7.4
             symfony: "^4.4"
           - php: 8.1
-            symfony: "^4.4"
+            symfony: "^5.4"
           - php: 8.2
-            symfony: "^4.4"
+            symfony: "^5.4"
           - php: 8.3
-            symfony: "^4.4"
+            symfony: "^6.4"
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -30,7 +30,7 @@ jobs:
           php-version: ${{ matrix.php }}
       - name: Restrict Symfony version
         if: matrix.symfony
-        run: rm composer.lock && composer require "symfony/symfony:${{ matrix.symfony }}" --no-update
+        run: composer require "symfony/symfony:${{ matrix.symfony }}" --no-update
       - name: Install dependencies
         uses: ramsey/composer-install@v3
       - name: Docker compose wait

composer.json

@@ -13,16 +13,16 @@
     "crossbar"
   ],
   "require": {
-    "php": "^7.0|^8.0",
-    "symfony/http-kernel": "^2.7 || ^3.0 || ^4.0",
-    "symfony/framework-bundle": "^2.7 || ^3.0 || ^4.0",
-    "symfony/dependency-injection": "^2.7 || ^3.0 || ^4.0",
-    "symfony/config": "^2.7 || ^3.0 || ^4.0",
+    "php": "^7.4 || ^8.0",
+    "symfony/http-kernel": "^4.4 || ^5.4 || ^6.4",
+    "symfony/framework-bundle": "^4.4 || ^5.4 || ^6.4",
+    "symfony/dependency-injection": "^4.4 || ^5.4 || ^6.4",
+    "symfony/config": "^4.4 || ^5.4 || ^6.4",
     "guzzlehttp/guzzle": "^5.0 || ^6.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "^9",
-    "symfony/yaml": "^2.7 || ^3.0 || ^4.0",
+    "phpunit/phpunit": "^9.6",
+    "symfony/yaml": "^4.4 || ^5.4 || ^6.4",
     "rector/rector": "^1",
     "phpspec/prophecy": "^1.18",
     "phpspec/prophecy-phpunit": "^2.1"