[release-1.9] Use Helm binary in e2e tests to avoid import

[mboersma]

This is a manual cherry-pick of #3757

NONE

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.01% 🎉

Comparison is base (c67f3ee) 52.89% compared to head (76b469f) 52.90%.
Report is 3 commits behind head on release-1.9.

Additional details and impacted files

@@               Coverage Diff               @@
##           release-1.9    #3781      +/-   ##
===============================================
+ Coverage        52.89%   52.90%   +0.01%     
===============================================
  Files              182      182              
  Lines            18250    18250              
===============================================
+ Hits              9653     9655       +2     
+ Misses            8057     8055       -2     
  Partials           540      540              

see 1 file with indirect coverage changes

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[nojnhuh]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: d716fe4f1fef8f7f6b728e7a3e04904164f2c440

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nojnhuh

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[willie-yao]

/lgtm