chore: upgrade urfave/cli to v2

[appleboy]

[codecov-io]

Codecov Report

Merging #152 into master will not change coverage. The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #152   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           1      1           
  Lines         106    106           
=====================================
  Hits          106    106

---

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 54cdb69...3e81a79. Read the comment docs.

[codecov-commenter]

Codecov Report

Merging #152 (23e173f) into master (59b08e1) will not change coverage. The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master     #152   +/-   ##
=======================================
  Coverage   36.90%   36.90%           
=======================================
  Files           2        2           
  Lines         401      401           
=======================================
  Hits          148      148           
  Misses        253      253           

Impacted Files	Coverage Δ
main.go	0.00% <0.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.