upgrade kubernetes-dashboard image version

[zouyee]

upgrade kubernetes-dashboard image version from 1.6.1 to 1.6.3

[k8s-ci-robot]

Hi @zouyee. Thanks for your PR.

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[k8s-github-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: zouyee
We suggest the following additional approver: justinsb

Assign the PR to them by writing /assign @justinsb in a comment when ready.

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[zouyee]

/assign @justinsb

[justinsb]

Thanks @zouyee - I may be missing something, but the manifest also has to be created - see #3075 as an example. That PR is only bumping to 1.6.2 though.

[justinsb]

It looks like #3075 is also going to bump to 1.6.3 now...

[justinsb]

(Thank you though for the contribution, and for highlighting the 1.6.3 availability!)

[justinsb]

#3075 has now merged, so I think this PR is moot? Closing, but if I've missed something please let me know / reopen.