[release-0.10] Adds wait for not ready for external etcd before upgrade

[eks-distro-pr-bot]

This is an automated cherry-pick of #2640

/assign mitalipaygude

[eks-distro-bot]

Hi @eks-distro-pr-bot. Thanks for your PR.

I'm waiting for a aws member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-0.10@72a2ab6). Click here to learn what that means.
The diff coverage is n/a.

@@               Coverage Diff               @@
##             release-0.10    #2676   +/-   ##
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  Coverage                ?   57.53%           
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  Files                   ?      308           
  Lines                   ?    25487           
  Branches                ?        0           
===============================================
  Hits                    ?    14663           
  Misses                  ?     9497           
  Partials                ?     1327           

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[pokearu]

/ok-to-test

[mitalipaygude]

/override eks-anywhere-attribution-files-presubmit
/override eks-anywhere-presubmit

[eks-distro-bot]

@mitalipaygude: Overrode contexts on behalf of mitalipaygude: eks-anywhere-attribution-files-presubmit, eks-anywhere-presubmit

In response to this:

/override eks-anywhere-attribution-files-presubmit
/override eks-anywhere-presubmit

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[mitalipaygude]

/lgtm
/approve

[eks-distro-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mitalipaygude

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