Inspect.Map.inspect/4 no longer exists in elixir 1.19

It looks like this is renamed to [inspect_as_struct/4](https://github.com/elixir-lang/elixir/blob/b1a7afd0619c6d588c52183bace1ae24958dd959/lib/elixir/lib/inspect.ex#L473)

```
iex> Rule.schema()
#Inspect.Error<
  got UndefinedFunctionError with message:

      """
      function Inspect.Map.inspect/4 is undefined or private
      """
```