Fix argument in RoadRunner process reset command (#1023)

Author: sy-records

tests/RoadRunnerServerProcessInspectorTest.php

@@ -63,7 +63,7 @@ public function test_roadrunner_server_process_can_be_reloaded()
         ]);
 
         $processFactory->shouldReceive('createProcess')->with(
-            [$this->findRoadRunnerBinary(), 'reset', '-o', 'server=3', '-o', 'rpc.listen=tcp://127.0.0.1:6002', '-s'],
+            [$this->findRoadRunnerBinary(), 'reset', '-o', 'version=3', '-o', 'rpc.listen=tcp://127.0.0.1:6002', '-s'],
             base_path(),
         )->andReturn($process = Mockery::mock('stdClass'));