added php version 7.4 support

Author: lachiebol

plugin.json

@@ -13,6 +13,7 @@
     "license": "GPL v3+",
     "homepage": "https:\/\/matomo.org",
     "require": {
+        "php": ">=7.4.0",
         "matomo": ">=5.0.0-stable,<6.0.0-b1"
     },
     "authors": [