docs: remove tailing space

rel/i18n/emqx_bridge_api.hocon

@@ -95,6 +95,6 @@ desc_param_path_operation_on_node.desc:
 """Operations can be one of: stop, restart"""
 
 desc_param_path_operation_on_node.label:
-"""Node Operation """
+"""Node Operation"""
 
 }

rel/i18n/emqx_bridge_v2_api.hocon

@@ -106,6 +106,6 @@ desc_param_path_operation_on_node.desc:
 """Operation can be one of: 'start'."""
 
 desc_param_path_operation_on_node.label:
-"""Node Operation """
+"""Node Operation"""
 
 }

rel/i18n/emqx_connector_api.hocon

@@ -94,6 +94,6 @@ desc_param_path_operation_on_node.desc:
 """Operation can be one of: 'start'."""
 
 desc_param_path_operation_on_node.label:
-"""Node Operation """
+"""Node Operation"""
 
 }