Merge branch 'pre-release-3.0'

Author: corpsee

composer.json

@@ -35,7 +35,7 @@
         }
     },
     "require": {
-        "php":              ">=7.1.0",
+        "php":              ">=7.4.0",
         "ext-json":         "*",
         "ext-ctype":        "*",
         "nikic/php-parser": "^4.12",
@@ -44,7 +44,7 @@
     "require-dev": {
         "phpunit/phpunit":                 "^7.5",
         "phpmd/phpmd":                     "^2.10",
-        "sebastian/phpcpd":                "^4.0",
+        "sebastian/phpcpd":                "^4.1",
         "squizlabs/php_codesniffer":       "^3.6",
         "phploc/phploc":                   "^4.0",
         "jakub-onderka/php-parallel-lint": "^1.0"