Add missing awaits to async expects in proj wizard tests

[testlabauto]

NOTE: this PR is waiting on input from @sharon-wang. We have one case that doesn't pass once the awaits were added and want to get her thoughts on it.

This PR simply adds awaits where they were missing on the project wizard tests. Just to be safe, the timeouts for the async blocks in question were also bumped significantly.

No change in execution functionality was observed on a fast Mac. Problems were encountered, however, in CI.

QA Notes

All smoke tests should pass.