Update tools

Author: sebastianbergmann

phive.xml

@@ -4,5 +4,5 @@
   <phar name="php-cs-fixer" version="^2.14" installed="2.15.1" location="./tools/php-cs-fixer" copy="true"/>
   <phar name="phpdox" version="^0.11" installed="0.12.0" location="./tools/phpdox" copy="true"/>
   <phar name="phploc" version="^4.0" installed="4.0.1" location="./tools/phploc" copy="true"/>
-  <phar name="psalm" version="^3.2" installed="3.4.7" location="./tools/psalm" copy="true"/>
+  <phar name="psalm" version="^3.2" installed="3.4.9" location="./tools/psalm" copy="true"/>
 </phive>