switch to psalm level 3

Author: jturbide

psalm.xml

@@ -14,7 +14,7 @@
         xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
         xmlns:xi="http://www.w3.org/2001/XInclude"
         phpVersion="8.3"
-        errorLevel="4"
+        errorLevel="3"
         resolveFromConfigFile="true"
         findUnusedBaselineEntry="true"
         findUnusedCode="false"