### Godot version

v4.1.dev.custom_build.a7276f1ce

### System information

Win10, AMD 2600, GeForce GTX 1060, Vulkan API 1.3.205

### Issue description

I can't get correct color data from an array of source_color type.
The color data is saved as **Color** in the file:
`shader_parameter/palette = [Color (1, 0, 0, 1), Color (0, 1, 0, 1), Color (0, 0, 1, 1)]`
Shouldn't it be saved as PackedColorArray?


### Steps to reproduce

1.Declare an array of source_color type.
2.Set colors.

### Minimal reproduction project

[shadertest.zip](https://github.com/godotengine/godot/files/11246504/shadertest.zip)

}
						}
					}
				} else if (n->type == Node::NODE_TYPE_OPERATOR) {
					_set_error(vformat(RTR("Array size expressions are not supported.")));
					return ERR_PARSE_ERROR;
				}
				if (r_size_expression != nullptr) {
					*r_size_expression = n;
				}
			}
		} else if (((int)tk.constant) > 0) {
			array_size = (uint32_t)tk.constant;
		}
		if (array_size <= 0) {
			_set_error(RTR("Expected a positive integer constant."));
			return ERR_PARSE_ERROR;
		}
		tk = _get_token();
		if (tk.type != TK_BRACKET_CLOSE) {
			_set_expected_error("]");
			return ERR_PARSE_ERROR;
		}
		if (r_array_size != nullptr) {
			*r_array_size = array_size;
		}
	}
	return OK;
}
ShaderLanguage::Node *ShaderLanguage::_parse_array_constructor(BlockNode *p_block, const FunctionInfo &p_function_info) {