Fix syntax error

src/Composer/Factory.php

@@ -70,7 +70,7 @@ class Factory
         $binDir = getenv('COMPOSER_BIN_DIR') ?: $packageConfig['config']['bin-dir'];
 
         // setup process timeout
-        $processTimeout = getenv('COMPOSER_PROCESS_TIMEOUT') ?: $packageConfig['config']['process-timeout']
+        $processTimeout = getenv('COMPOSER_PROCESS_TIMEOUT') ?: $packageConfig['config']['process-timeout'];
         ProcessExecutor::setTimeout((int) $processTimeout);
 
         // initialize repository manager