Update imports for major version

[baderbuddy]

Outside projects can only import Pluto v1 right now because of the way Go Mod handles Semver. This will fix it so v3 is importable.

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

Merging #115 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #115   +/-   ##
=======================================
  Coverage   84.17%   84.17%           
=======================================
  Files           7        7           
  Lines         512      512           
=======================================
  Hits          431      431           
  Misses         55       55           
  Partials       26       26           

Impacted Files	Coverage Δ
pkg/api/output.go	89.58% <ø> (ø)
pkg/finder/finder.go	85.96% <ø> (ø)
pkg/helm/helm.go	68.36% <ø> (ø)
pkg/helm/kube.go	0.00% <ø> (ø)

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