Wait for aliases in tests

[AndyBitz]

We'll need to wait a bit after the deployment url returns something to verify that the deployment aliases are assigned again.

[codecov-io]

Codecov Report

Merging #2257 into canary will increase coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           canary    #2257      +/-   ##
==========================================
+ Coverage   10.43%   10.43%   +<.01%     
==========================================
  Files         246      246              
  Lines        9020     9024       +4     
  Branches      989      990       +1     
==========================================
+ Hits          941      942       +1     
- Misses       7955     7958       +3     
  Partials      124      124

Impacted Files	Coverage Δ
src/commands/dev/lib/builder-cache.ts	65.57% <0%> (-1.38%)	⬇️

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