update to PHPStan 1.5 and Psalm to 4.22

Author: LordSimal

composer.json

@@ -52,11 +52,14 @@
         "cs-check": "phpcs --colors -p src/ tests/",
         "cs-fix": "phpcbf --colors -p src/ tests/",
         "stan": "phpstan analyse src/ && psalm.phar --show-info=false",
-        "stan-setup": "cp composer.json composer.backup && composer require --dev phpstan/phpstan:^0.12 psalm/phar:^3.7 && mv composer.backup composer.json",
+        "stan-setup": "cp composer.json composer.backup && composer require --dev phpstan/phpstan:^1.5 psalm/phar:~4.22 && mv composer.backup composer.json",
         "test": "phpunit",
         "test-coverage": "phpunit --coverage-clover=clover.xml"
     },
     "config": {
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true
+        }
     }
 }

psalm.xml

@@ -1,11 +1,9 @@
 <?xml version="1.0"?>
 <psalm
-    totallyTyped="false"
-    resolveFromConfigFile="true"
-    ignoreInternalFunctionFalseReturn="true"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns="https://getpsalm.org/schema/config"
     xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
+    autoloader="tests/bootstrap.php"
 >
     <projectFiles>
         <directory name="src" />