Test against Helm 3.9.0

[hypnoglow]

Ref: #169 169

[codecov]

Codecov Report

Merging #176 (b4e649a) into master (b0a0987) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #176   +/-   ##
=======================================
  Coverage   45.27%   45.27%           
=======================================
  Files          18       18           
  Lines         466      466           
=======================================
  Hits          211      211           
  Misses        245      245           
  Partials       10       10           

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