Update tools (and manage Composer through Phive)

Author: sebastianbergmann

.phive/phars.xml

@@ -1,5 +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="php-cs-fixer" version="^2.16" installed="2.16.7" location="./tools/php-cs-fixer" copy="true"/>
   <phar name="psalm" version="^4.0" installed="4.0.1" location="./tools/psalm" copy="true"/>
+  <phar name="composer" version="^2.0.3" installed="2.0.3" location="./tools/composer" copy="true"/>
 </phive>

build.xml

@@ -21,10 +21,6 @@
             <arg value="--no-progress"/>
             <arg value="update"/>
         </exec>
-
-        <exec executable="${basedir}/tools/composer" taskname="composer">
-            <arg value="self-update"/>
-        </exec>
     </target>
 </project>