chore(phpunit): remove cacheDirectory

Author: hakan0xFF

phpunit.xml.dist

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd" backupGlobals="false" colors="true" processIsolation="false" stopOnFailure="false" bootstrap="tests/unit/bootstrap.inc.php" cacheDirectory=".phpunit.cache" backupStaticProperties="false">
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd" backupGlobals="false" colors="true" processIsolation="false" stopOnFailure="false" bootstrap="tests/unit/bootstrap.inc.php" backupStaticProperties="false">
   <testsuites>
     <testsuite name="default">
       <directory>tests/unit</directory>