Fix used_chips in cli.py

[espoem]

No description provided.

[codecov]

Codecov Report

Merging #25 into master will not change coverage.
The diff coverage is 0%.

@@          Coverage Diff           @@
##           master     #25   +/-   ##
======================================
  Coverage    66.8%   66.8%           
======================================
  Files          13      13           
  Lines         726     726           
======================================
  Hits          485     485           
  Misses        241     241

Impacted Files	Coverage Δ
fpl/cli.py	0% <0%> (ø)	⬆️

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