add support for Kubernetes 1.9.10

[mboersma]

What this PR does / why we need it:

See https://github.com/kubernetes/kubernetes/releases/tag/v1.9.10

TODO:

• upload Windows binary

If applicable:

• documentation
• unit tests
• tested backward compatibility (ie. deploy with previous version, upgrade with this branch)

Release note:

add support for Kubernetes 1.9.10

[codecov]

Codecov Report

Merging #3607 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #3607   +/-   ##
======================================
  Coverage    55.4%   55.4%           
======================================
  Files         107     107           
  Lines       16210   16210           
======================================
  Hits         8981    8981           
  Misses       6453    6453           
  Partials      776     776

[jackfrancis]

/lgtm

[acs-bot]

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