### 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)

String result;
	switch (p_filter) {
		case FILTER_NEAREST: {
			result = "filter_nearest";
		} break;
		case FILTER_LINEAR: {
			result = "filter_linear";
		} break;
		case FILTER_NEAREST_MIPMAP: {
			result = "filter_nearest_mipmap";
		} break;
		case FILTER_LINEAR_MIPMAP: {
			result = "filter_linear_mipmap";
		} break;
		case FILTER_NEAREST_MIPMAP_ANISOTROPIC: {
			result = "filter_nearest_mipmap_anisotropic";
		} break;
		case FILTER_LINEAR_MIPMAP_ANISOTROPIC: {
			result = "filter_linear_mipmap_anisotropic";
		} break;
		default: {
		} break;
	}
	return result;
}
String ShaderLanguage::get_texture_repeat_name(TextureRepeat p_repeat) {