Update tools

Author: sebastianbergmann

.phive/phars.xml

@@ -4,5 +4,5 @@
   <phar name="phpab" version="^1.26" installed="1.26.3" location="./tools/phpab" copy="true"/>
   <phar name="php-cs-fixer" version="^3.0" installed="3.0.2" location="./tools/php-cs-fixer" copy="true"/>
   <phar name="psalm" version="^4.0" installed="4.9.3" location="./tools/psalm" copy="true"/>
-  <phar name="composer" version="^2.0" installed="2.1.5" location="./tools/composer" copy="true"/>
+  <phar name="composer" version="^2.0" installed="2.1.6" location="./tools/composer" copy="true"/>
 </phive>