Update min PHP requirement to v7.4 or v8.1

thePanz · thePanz · commit eca1c5a7e1af · 2024-02-16T13:28:32.000+01:00
diff --git a/composer.json b/composer.json
@@ -4,8 +4,8 @@
     "type": "library",
     "license": "MIT",
     "require": {
-        "php" : ">=5.3.0",
-        "swiftmailer/swiftmailer": "~5.2 || ^6.0"
+        "php" : "^7.4 || ^8.1",
+        "swiftmailer/swiftmailer": "^5.2 || ^6.0"
     },
     "require-dev": {
         "psr/log": "*"
