Elixir adapter has wrong script name

The ElixirLS debug adapter was renamed in [Dec 2023 commit](https://github.com/elixir-lsp/elixir-ls/commits/92a3e5f1d2cfabdcdc561c3bbbda2813104f0f91/scripts/debug_adapter.sh) from debugger.[bat|sh] to debug_adapter.[bat|sh], so the SublimeDebugger elixir adapter should be updated to
```python
command = [f'{install_path}/elixir-ls-release/debug_adapter.{extension}']
```