Try to avoid 'Unable to add newly converted phar... to the list of ph…

…ars, a phar with that name already exists' due to https://bugs.php.net/bug.php\?id\=75101 [skip ci]

src/BinaryInstaller.php

@@ -206,7 +206,7 @@ protected function installBinary($binary, $version, $url, $sha, $hashalgo = 'sha
         else {
             $cacheFolder = sys_get_temp_dir() . \DIRECTORY_SEPARATOR . $binary . \DIRECTORY_SEPARATOR . $version;
         }
-        $cacheDestination = $cacheFolder . \DIRECTORY_SEPARATOR . $fileName;
+        $cacheDestination = $cacheFolder. \DIRECTORY_SEPARATOR . bin2hex(random_bytes(5)) . $fileName;
         $cacheExtractedBinary = $cacheFolder . \DIRECTORY_SEPARATOR . $binary;
         $binDestination = $bin . \DIRECTORY_SEPARATOR . $binary;