chore: set PHPStan to level 5 with baseline

.phive/phars.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <phive xmlns="https://phar.io/phive">
-  <phar name="phpstan" version="1.11.1" installed="1.11.1" location="./tools/phpstan" copy="false"/>
+  <phar name="phpstan" version="1.11.8" installed="1.11.8" location="./tools/phpstan" copy="false"/>
   <phar name="phpunit" version="^10.5.20" installed="10.5.20" location="./tools/phpunit" copy="false"/>
   <phar name="phpcs" version="^3.10.1" installed="3.10.1" location="./tools/phpcs" copy="false"/>
   <phar name="phpcbf" version="^3.10.1" installed="3.10.1" location="./tools/phpcbf" copy="false"/>

phpstan-baseline.neon

+parameters:
+	ignoreErrors:
+		-
+			message: "#^Call to an undefined method QUI\\\\ERP\\\\Order\\\\AbstractOrder\\:\\:save\\(\\)\\.$#"
+			count: 2
+			path: src/QUI/ERP/Order/Guest/EventHandler.php
+
+		-
+			message: "#^Call to an undefined method QUI\\\\Interfaces\\\\Projects\\\\Site\\:\\:getUrlRewrittenWithHost\\(\\)\\.$#"
+			count: 1
+			path: src/QUI/ERP/Order/Guest/EventHandler.php
+
+		-
+			message: "#^Call to an undefined method QUI\\\\Interfaces\\\\Users\\\\User\\:\\:getGuestOrderId\\(\\)\\.$#"
+			count: 1
+			path: src/QUI/ERP/Order/Guest/EventHandler.php
+
+		-
+			message: "#^Class QUI\\\\ERP\\\\Shipping\\\\Order\\\\Shipping not found\\.$#"
+			count: 1
+			path: src/QUI/ERP/Order/Guest/EventHandler.php
+
+		-
+			message: "#^Method QUI\\\\ERP\\\\Order\\\\Guest\\\\EventHandler\\:\\:extendMail\\(\\) with return type void returns null but should not return anything\\.$#"
+			count: 1
+			path: src/QUI/ERP/Order/Guest/EventHandler.php
+
+		-
+			message: "#^Method QUI\\\\ERP\\\\Order\\\\Guest\\\\EventHandler\\:\\:onOrderProcessGetOrder\\(\\) should return QUI\\\\ERP\\\\Order\\\\OrderInProcess\\|null but returns QUI\\\\ERP\\\\Order\\\\Order\\.$#"
+			count: 1
+			path: src/QUI/ERP/Order/Guest/EventHandler.php
+
+		-
+			message: "#^Method QUI\\\\ERP\\\\Order\\\\Guest\\\\EventHandler\\:\\:onQuiqqerOrderClear\\(\\) with return type void returns null but should not return anything\\.$#"
+			count: 1
+			path: src/QUI/ERP/Order/Guest/EventHandler.php
+
+		-
+			message: "#^Parameter \\#1 \\$code of method QUI\\\\Interfaces\\\\Users\\\\User\\:\\:activate\\(\\) expects string, false given\\.$#"
+			count: 1
+			path: src/QUI/ERP/Order/Guest/GuestOrder.php
+
+		-
+			message: "#^Parameter \\#1 \\$groupId of method QUI\\\\Interfaces\\\\Users\\\\User\\:\\:addToGroup\\(\\) expects int, string given\\.$#"
+			count: 2
+			path: src/QUI/ERP/Order/Guest/GuestOrder.php
+
+		-
+			message: "#^Parameter \\#2 \\$User of class QUI\\\\ERP\\\\Address constructor expects QUI\\\\ERP\\\\User\\|null, \\$this\\(QUI\\\\ERP\\\\Order\\\\Guest\\\\GuestOrderUser\\) given\\.$#"
+			count: 1
+			path: src/QUI/ERP/Order/Guest/GuestOrderUser.php

phpstan.dist.neon

@@ -2,7 +2,7 @@ includes:
     - phpstan-baseline.neon
 
 parameters:
-    level: 8
+    level: 5
     paths:
         - src
         - ajax