### 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)

case TYPE_SAMPLER2D:
			return "sampler2D";
		case TYPE_ISAMPLER2D:
			return "isampler2D";
		case TYPE_USAMPLER2D:
			return "usampler2D";
		case TYPE_SAMPLER2DARRAY:
			return "sampler2DArray";
		case TYPE_ISAMPLER2DARRAY:
			return "isampler2DArray";
		case TYPE_USAMPLER2DARRAY:
			return "usampler2DArray";
		case TYPE_SAMPLER3D:
			return "sampler3D";
		case TYPE_ISAMPLER3D:
			return "isampler3D";
		case TYPE_USAMPLER3D:
			return "usampler3D";
		case TYPE_SAMPLERCUBE:
			return "samplerCube";
		case TYPE_SAMPLERCUBEARRAY:
			return "samplerCubeArray";
		case TYPE_STRUCT:
			return "struct";
		case TYPE_MAX:
			return "invalid";
	}
	return "";
}
String ShaderLanguage::get_uniform_hint_name(ShaderNode::Uniform::Hint p_hint) {