### 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)

}
		} break;
		case ShaderLanguage::TYPE_IVEC4: {
			int32_t *gui = (int32_t *)data;
			for (int i = 0; i < 4; i++) {
				gui[i] = value[i].sint;
			}
		} break;
		case ShaderLanguage::TYPE_UINT: {
			uint32_t *gui = (uint32_t *)data;
			gui[0] = value[0].uint;
		} break;
		case ShaderLanguage::TYPE_UVEC2: {
			int32_t *gui = (int32_t *)data;
			for (int i = 0; i < 2; i++) {
				gui[i] = value[i].uint;
			}
		} break;
		case ShaderLanguage::TYPE_UVEC3: {
			int32_t *gui = (int32_t *)data;
			for (int i = 0; i < 3; i++) {
				gui[i] = value[i].uint;
			}
		} break;
		case ShaderLanguage::TYPE_UVEC4: {
			int32_t *gui = (int32_t *)data;
			for (int i = 0; i < 4; i++) {
				gui[i] = value[i].uint;
			}
		} break;