chore: add go workspace (#6111)
### Description
I got a suggestion to update my Go dev tools to match my installed Go
version and it resulted in my VSCode integration breaking with the
suggested fix being adding a `go.work` file.
Reading through the [docs](https://go.dev/ref/mod#workspaces) I think
this is a result of `GOWORK` getting enabled somehow so I could fix it
by disabling that env var, but I figure some others might run into this
and this seems like an easy enough solution.
### Testing Instructions
- Update your `gopls` and other Go tools to use Go `1.20`
- Observe broken VSCode Go integration
- Add `go.work` and see VSCode Go integration work again (might require
restarting developer extensions)
Closes TURBO-1428
Co-authored-by: Chris Olszewski <Chris Olszewski>
