use a Gc pointer instead of an Rc maybe.

[github-actions]

bones/framework_crates/bones_scripting/src/lua/bindings/ecsref.rs

Lines 101 to 108 in b865f8f

	Asset(AssetRef),
	/// A free-standing ref, not stored in the ECS.
	// TODO: use a `Gc` pointer instead of an Rc maybe.
	Free(Rc<AtomicCell<SchemaBox>>),
	}
	/// A kind of borrow into an [`EcsRef`].
	pub enum EcsRefBorrowKind<'a> {

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This issue was generated by todo-issue based on a TODO comment in b865f8f.