(tests,fix) coverage for clone test was getting trapped inside the repo dir

[zaquestion]

• when adding the upstream remote well run the command from the directory instead of changing to the directory to run the command for now on. This is probably how I should have done it the first time, that logic is written by someone who doesnt use the "upstream" paradigm

[codecov]

Codecov Report

Merging #64 into master will increase coverage by 1.55%.
The diff coverage is 76.92%.

@@            Coverage Diff             @@
##           master      #64      +/-   ##
==========================================
+ Coverage   53.72%   55.27%   +1.55%     
==========================================
  Files          21       21              
  Lines         953      957       +4     
==========================================
+ Hits          512      529      +17     
+ Misses        308      287      -21     
- Partials      133      141       +8

Impacted Files	Coverage Δ
main.go	100% <100%> (ø)	⬆️
cmd/fork.go	26.47% <100%> (ø)	⬆️
internal/git/git.go	69.36% <71.42%> (+0.56%)	⬆️
cmd/clone.go	40% <75%> (+33.1%)	⬆️
cmd/root.go	68.57% <0%> (+5.71%)	⬆️

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