Update tools

Author: sebastianbergmann

.phive/phars.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phive xmlns="https://phar.io/phive">
   <phar name="php-cs-fixer" version="^3.0" installed="3.0.0" location="./tools/php-cs-fixer" copy="true"/>
-  <phar name="psalm" version="^4.0" installed="4.8.1" location="./tools/psalm" copy="true"/>
+  <phar name="psalm" version="^4.0" installed="4.9.1" location="./tools/psalm" copy="true"/>
   <phar name="composer" version="^2.0.3" installed="2.1.5" location="./tools/composer" copy="true"/>
 </phive>