### 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 ShaderLanguage::TYPE_USAMPLER2D: {
			if (p_uniform.array_size > 0) {
				pi.type = Variant::ARRAY;
				pi.hint = PROPERTY_HINT_ARRAY_TYPE;
				pi.hint_string = MAKE_RESOURCE_TYPE_HINT("Texture2D");
			} else {
				pi.type = Variant::OBJECT;
				pi.hint = PROPERTY_HINT_RESOURCE_TYPE;
				pi.hint_string = "Texture2D";
			}
		} break;
		case ShaderLanguage::TYPE_SAMPLER2DARRAY:
		case ShaderLanguage::TYPE_ISAMPLER2DARRAY:
		case ShaderLanguage::TYPE_USAMPLER2DARRAY:
		case ShaderLanguage::TYPE_SAMPLERCUBE:
		case ShaderLanguage::TYPE_SAMPLERCUBEARRAY: {
			if (p_uniform.array_size > 0) {
				pi.type = Variant::ARRAY;
				pi.hint = PROPERTY_HINT_ARRAY_TYPE;
				pi.hint_string = MAKE_RESOURCE_TYPE_HINT("TextureLayered");
			} else {
				pi.type = Variant::OBJECT;
				pi.hint = PROPERTY_HINT_RESOURCE_TYPE;
				pi.hint_string = "TextureLayered";
			}
		} break;
		case ShaderLanguage::TYPE_SAMPLER3D:
		case ShaderLanguage::TYPE_ISAMPLER3D:
		case ShaderLanguage::TYPE_USAMPLER3D: {
			if (p_uniform.array_size > 0) {