[CLI] Add support for bun

Hi, 

Is it possible to use CLI with the latest Bun version?

I tried running `bun x inngest-cli@latest dev` but it fails with the following error:

```bash
$ bun x inngest-cli@latest dev
error: Failed to run "inngest-cli" due to error InvalidExe
error: script "inngest" exited with code 1 (SIGHUP)
```

Thanks