[now-cli] Add test for zero-config and canary builders

[AndyBitz]

Add test for zero-config and canary builders.

[codecov-io]

Codecov Report

Merging #3009 into canary will decrease coverage by 0.47%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           canary   #3009      +/-   ##
=========================================
- Coverage   11.98%   11.5%   -0.48%     
=========================================
  Files         268     268              
  Lines       10189   10124      -65     
  Branches     1297    1305       +8     
=========================================
- Hits         1221    1165      -56     
+ Misses       8875    8869       -6     
+ Partials       93      90       -3

Impacted Files	Coverage Δ
src/util/output/create-output.ts	31.25% <0%> (-12.34%)	⬇️
src/util/prefer-v2-deployment.ts	56.25% <0%> (-5.66%)	⬇️
src/util/get-files.ts	87.77% <0%> (-3.89%)	⬇️
src/util/projects/get-project-by-id-or-name.ts	25% <0%> (-3.58%)	⬇️
src/util/metrics.ts	70.58% <0%> (+2.4%)	⬆️
src/util/dev/builder-cache.ts	80.74% <0%> (+3.47%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1211ee4...332ca7f. Read the comment docs.