Set indent_paren_open_brace=true

Since we indent the arguments after a newline, this prevents a visual dedent when using a braced argument:

BAD:
```
    ASSERT_THROW(
    {
      auto client = node->create_client<ListParameters>(
        "invalid_service?"
      );
    },
      rclcpp::exceptions::InvalidServiceNameError
    );
```
GOOD:
```
    ASSERT_THROW(
      {
        auto client = node->create_client<ListParameters>(
          "invalid_service?"
        );
      },
      rclcpp::exceptions::InvalidServiceNameError
    );
```

Signed-off-by: Dan Rose <dan@digilabs.io>

ament_uncrustify/ament_uncrustify/configuration/ament_code_style.cfg

@@ -769,7 +769,7 @@ indent_braces_no_struct         = false    # false/true
 indent_brace_parent             = false    # false/true
 
 # Indent based on the paren open instead of the brace open in '({\n', default is to indent by brace.
-indent_paren_open_brace         = false    # false/true
+indent_paren_open_brace         = true     # false/true
 
 # indent a C# delegate by another level, default is to not indent by another level.
 indent_cs_delegate_brace        = false    # false/true