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="^2.16" installed="2.16.4" location="./tools/php-cs-fixer" copy="true"/>
-  <phar name="psalm" version="^3.11" installed="3.15.0" location="./tools/psalm" copy="true"/>
+  <phar name="psalm" version="^3.11" installed="3.16.0" location="./tools/psalm" copy="true"/>
   <phar name="roave/backwardcompatibilitycheck" version="^5.0.0" installed="5.0.0" location="./tools/roave-backward-compatibility-check" copy="true"/>
 </phive>