fix: rust spaces auth requirements (#6453)
### Description
Fix our too strict requirement on the presence of `team_id` for making
API calls. We don't have this requirement in Go and instead have the
`IsLinked` method that checks that one of them is present. This is used
in exactly 2 places
[spaces](https://github.com/vercel/turbo/blob/main/cli/internal/runsummary/spaces.go#L71)
and
[analytics](https://github.com/vercel/turbo/blob/main/cli/internal/run/run.go#L440)
to check if there's some way of identifying the team. In this PR we port
this behavior from Go.
One thing to note is that this also gets us to parity of the Go behavior
for the HTTP cache (whether it's desired is another question). There's
no requirement that `team_id` is non-empty when constructing the HTTP
cache artifact signer:
[construction](https://github.com/vercel/turbo/blob/main/cli/internal/cache/cache_http.go#L246)
[signing](https://github.com/vercel/turbo/blob/main/cli/internal/cache/cache_signature_authentication.go#L59).
We copy this behavior in Rust and allow for an empty `team_id`.
Future work:
There's some type-safety gains we can make by representing team
identification as an enum to avoid the case where `APIAuth` doesn't have
a team identifier. This requires an audit of what API calls require what
information exactly and changing of those interfaces. There's also the
question of the validity of both a team slug and a team id. In the name
of getting this out quick, I copied the Go behavior with whatever flaws
has so we can at least match the behavior.
It will probably be slightly easier to remove each commit on it's own as
it's mostly code shuffling until the final commit.
### Testing Instructions
Sending info to spaces now works if only a team slug is provided e.g.
```
EXPERIMENTAL_RUST_CODEPATH=true turbo_dev build --filter='@turbo/codemod' --team=vercel --token=**secret**
...
Tasks: 3 successful, 3 total
Cached: 3 cached, 3 total
Time: 390ms >>> FULL TURBO
Sending to space
Run: https://vercel.com/teams/...
```
---------
Co-authored-by: Chris Olszewski <Chris Olszewski>
