Replace all raise ruby keyword with fail

lib/producer/core/cli.rb

@@ -46,7 +46,7 @@ module Producer
           m
         end
 
-        raise ArgumentError unless arguments.any?
+        fail ArgumentError unless arguments.any?
       end
 
       def run

lib/producer/core/remote.rb

@@ -32,7 +32,7 @@ module Producer
 
             ch.on_request 'exit-status' do |c, data|
               exit_status = data.read_long
-              raise RemoteCommandExecutionError, command if exit_status != 0
+              fail RemoteCommandExecutionError, command if exit_status != 0
             end
           end
         end

lib/producer/core/testing/mock_remote.rb

@@ -3,7 +3,7 @@ module Producer
     module Testing
       class MockRemote < Remote
         def session
-          raise 'no session for mock remote!'
+          fail 'no session for mock remote!'
         end
 
         def execute(command, output = '')
@@ -16,9 +16,9 @@ module Producer
           when 'true'
             output << ''
           when 'false'
-            raise RemoteCommandExecutionError
+            fail RemoteCommandExecutionError
           when 'type'
-            raise RemoteCommandExecutionError unless %w[
+            fail RemoteCommandExecutionError unless %w[
               echo
               true
               false