### 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)

"^=",
		"&",
		"|",
		"^",
		"~",
		"++",
		"--",
		"?",
		":",
		"++",
		"--",
		"()",
		"construct",
		"index",
		"empty" };
	return op_names[p_op];
}
const char *ShaderLanguage::token_names[TK_MAX] = {
	"EMPTY",
	"IDENTIFIER",
	"TRUE",
	"FALSE",
	"FLOAT_CONSTANT",
	"INT_CONSTANT",
	"UINT_CONSTANT",
	"TYPE_VOID",
	"TYPE_BOOL",
	"TYPE_BVEC2",
	"TYPE_BVEC3",
	"TYPE_BVEC4",