Tag instances with their etcd or kubernetes version

[davidmccormick]

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[k8s-ci-robot]

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[codecov-io]

Codecov Report

Merging #1612 into v0.13.x will increase coverage by <.01%.
The diff coverage is 50%.

@@             Coverage Diff             @@
##           v0.13.x    #1612      +/-   ##
===========================================
+ Coverage    25.45%   25.46%   +<.01%     
===========================================
  Files           97       97              
  Lines         5040     5042       +2     
===========================================
+ Hits          1283     1284       +1     
- Misses        3613     3614       +1     
  Partials       144      144

Impacted Files	Coverage Δ
pkg/model/stack_new.go	33.86% <50%> (+0.17%)	⬆️

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