### 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)

actions.renames["sdf_to_screen_uv"] = "sdf_to_screen_uv";
		actions.renames["screen_uv_to_sdf"] = "screen_uv_to_sdf";
		actions.usage_defines["COLOR"] = "#define COLOR_USED\n";
		actions.usage_defines["SCREEN_UV"] = "#define SCREEN_UV_USED\n";
		actions.usage_defines["SCREEN_PIXEL_SIZE"] = "@SCREEN_UV";
		actions.usage_defines["NORMAL"] = "#define NORMAL_USED\n";
		actions.usage_defines["NORMAL_MAP"] = "#define NORMAL_MAP_USED\n";
		actions.usage_defines["LIGHT"] = "#define LIGHT_SHADER_CODE_USED\n";
		actions.usage_defines["SPECULAR_SHININESS"] = "#define SPECULAR_SHININESS_USED\n";
		actions.render_mode_defines["skip_vertex_transform"] = "#define SKIP_TRANSFORM_USED\n";
		actions.render_mode_defines["unshaded"] = "#define MODE_UNSHADED\n";
		actions.render_mode_defines["light_only"] = "#define MODE_LIGHT_ONLY\n";
		actions.global_buffer_array_variable = "global_shader_uniforms";
		shaders.compiler_canvas.initialize(actions);
	}
	{
		
		
		ShaderCompiler::DefaultIdentifierActions actions;
		actions.renames["MODEL_MATRIX"] = "model_matrix";
		actions.renames["MODEL_NORMAL_MATRIX"] = "model_normal_matrix";
		actions.renames["VIEW_MATRIX"] = "scene_data.view_matrix";
		actions.renames["INV_VIEW_MATRIX"] = "scene_data.inv_view_matrix";
		actions.renames["PROJECTION_MATRIX"] = "projection_matrix";
		actions.renames["INV_PROJECTION_MATRIX"] = "inv_projection_matrix";
		actions.renames["MODELVIEW_MATRIX"] = "modelview";
		actions.renames["MODELVIEW_NORMAL_MATRIX"] = "modelview_normal";
		actions.renames["VERTEX"] = "vertex";
		actions.renames["NORMAL"] = "normal";
		actions.renames["TANGENT"] = "tangent";