Update vimeo/psalm version and improve psalm config

composer.json

@@ -36,7 +36,7 @@
         "rector/rector": "^0.17.0",
         "roave/infection-static-analysis-plugin": "^1.16",
         "spatie/phpunit-watcher": "^1.23",
-        "vimeo/psalm": "^4.18"
+        "vimeo/psalm": "^4.30|^5.3"
     },
     "autoload": {
         "psr-4": {

psalm.xml

@@ -1,14 +1,19 @@
 <?xml version="1.0"?>
 <psalm
     errorLevel="1"
+    findUnusedBaselineEntry="true"
+    findUnusedCode="false"
     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"
 >
     <projectFiles>
         <directory name="src" />
         <ignoreFiles>
-            <directory name="vendor"/>
+            <directory name="vendor" />
         </ignoreFiles>
     </projectFiles>
+    <issueHandlers>
+        <MixedAssignment errorLevel="suppress" />
+    </issueHandlers>
 </psalm>