fix: Patch v1.15.11, v1.15.12, v1.16.10, v1.16.13, v1.17.7, v1.17.9, v1.18.4 v1.18.6

[AbelHu]

Reason for Change:

1. Patch v1.15.11, v1.15.12, v1.16.10, v1.16.13, v1.17.7, v1.17.9 for Windows CPU usage issue
2. Patch v1.18.4 v1.18.6 for CVE

Issue Fixed:

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Notes:

[codecov]

Codecov Report

Merging #3725 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #3725   +/-   ##
=======================================
  Coverage   73.16%   73.17%           
=======================================
  Files         147      147           
  Lines       25318    25322    +4     
=======================================
+ Hits        18525    18529    +4     
  Misses       5655     5655           
  Partials     1138     1138           

Impacted Files	Coverage Δ
pkg/api/k8s_versions.go	100.00% <100.00%> (ø)

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[jsturtevant]

I believe we have been also adding the same packages for Linux, have those been added?

[AbelHu]

I believe we have been also adding the same packages for Linux, have those been added?

Only update this for Windows as this PR https://github.com/Azure/aks-engine/pull/3510/files since we only want to build 8b with these hotfixes for windows. If you think that we need also to do it for linux, I can update it.

[jackfrancis]

lgtm

[jsturtevant]

Linux packages are done via a different channel.

/lgtm

[acs-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AbelHu, jackfrancis, jsturtevant

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