Fix bad tag detection and setup CI

[andrewrynhard]

No description provided.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@0c55035). Click here to learn what that means.
The diff coverage is 23.52%.

@@           Coverage Diff            @@
##             master      #2   +/-   ##
========================================
  Coverage          ?   8.62%           
========================================
  Files             ?       2           
  Lines             ?     116           
  Branches          ?       0           
========================================
  Hits              ?      10           
  Misses            ?     104           
  Partials          ?       2

Impacted Files	Coverage Δ
conform/enforce.go	10.2% <23.52%> (ø)

---

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 0c55035...f3f19de. Read the comment docs.