chore: update Dashboard addon to v2.0.3

[mboersma]

Reason for Change:

See https://github.com/kubernetes/dashboard/releases/tag/v2.0.3

Issue Fixed:

Requirements:

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

Notes:

[codecov]

Codecov Report

Merging #3606 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3606   +/-   ##
=======================================
  Coverage   73.16%   73.16%           
=======================================
  Files         147      147           
  Lines       25129    25129           
=======================================
  Hits        18385    18385           
  Misses       5612     5612           
  Partials     1132     1132           

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

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[CecileRobertMichon]

/lgtm

[acs-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CecileRobertMichon, mboersma

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