[v1.16.1] Update API version for deployment, as v1beta1 is deprecated.

[dominicgunn]

Changes

• apps/v1beta1 has been deprecated, we need to remove reference to it.

[k8s-ci-robot]

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[codecov-commenter]

Codecov Report

Merging #1870 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1870   +/-   ##
=======================================
  Coverage   24.41%   24.41%           
=======================================
  Files          98       98           
  Lines        5116     5116           
=======================================
  Hits         1249     1249           
  Misses       3727     3727           
  Partials      140      140           

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